diff --git a/dictation_client/src/components/footer/index.tsx b/dictation_client/src/components/footer/index.tsx
index 6d4ec1e..3121fb4 100644
--- a/dictation_client/src/components/footer/index.tsx
+++ b/dictation_client/src/components/footer/index.tsx
@@ -6,8 +6,50 @@ import { getTranslationID } from "translation";
 const Footer: React.FC = () => {
   const [t] = useTranslation();
   return (
-    <footer className={`${styles.footer}`}>
-      <div>{t(getTranslationID("common.label.copyRight"))}</div>
+    <footer
+      className={`${styles.footer}`}
+      style={{
+        padding: "0.5rem",
+        display: "flex",
+        flexDirection: "column",
+        alignItems: "center",
+      }}
+    >
+      <div
+        style={{
+          marginBottom: "0.5rem",
+          textAlign: "center",
+        }}
+      >
+        {t(getTranslationID("common.label.copyRight"))}
+      </div>
+      <div
+        style={{
+          display: "flex",
+          gap: "1rem",
+        }}
+      >
+        <a
+          href="https://download.omsystem.com/pages/odms_download/odms_cloud_eula/eula/en/"
+          target="_blank"
+          className={styles.linkTx}
+          style={{ color: "#999999" }}
+          data-tag="open-eula"
+          rel="noreferrer"
+        >
+          {t(getTranslationID("common.label.eula"))}
+        </a>
+        <a
+          href="https://download.omsystem.com/pages/odms_download/odms_cloud_eula/privacy_notice/en/"
+          target="_blank"
+          className={styles.linkTx}
+          style={{ color: "#999999" }}
+          data-tag="open-privacy-notice"
+          rel="noreferrer"
+        >
+          {t(getTranslationID("common.label.privacyNotice"))}
+        </a>
+      </div>
     </footer>
   );
 };
diff --git a/dictation_client/src/pages/AccountPage/index.tsx b/dictation_client/src/pages/AccountPage/index.tsx
index 3d669ff..e8a118f 100644
--- a/dictation_client/src/pages/AccountPage/index.tsx
+++ b/dictation_client/src/pages/AccountPage/index.tsx
@@ -173,7 +173,7 @@ const AccountPage: React.FC = (): JSX.Element => {
                               changeDealer({
                                 parentAccountId:
                                   dealers.find(
-                                    (x) => x.name === event.target.value
+                                    (x) => x.id === Number(event.target.value)
                                   )?.id || undefined,
                               })
                             );
@@ -190,7 +190,7 @@ const AccountPage: React.FC = (): JSX.Element => {
                             )} --`}
                           </option>
                           {dealers.map((x) => (
-                            <option key={x.name} value={x.name}>
+                            <option key={x.id} value={x.id}>
                               {x.name}
                             </option>
                           ))}
diff --git a/dictation_client/src/pages/SupportPage/index.tsx b/dictation_client/src/pages/SupportPage/index.tsx
index 8f1ad90..ecbb892 100644
--- a/dictation_client/src/pages/SupportPage/index.tsx
+++ b/dictation_client/src/pages/SupportPage/index.tsx
@@ -4,6 +4,7 @@ import { UpdateTokenTimer } from "components/auth/updateTokenTimer";
 import { useTranslation } from "react-i18next";
 import { getTranslationID } from "translation";
 import styles from "styles/app.module.scss";
+import Footer from "components/footer";
 
 const SupportPage: React.FC = () => {
   const { t } = useTranslation();
@@ -45,6 +46,7 @@ const SupportPage: React.FC = () => {
           </section>
         </div>
       </main>
+      <Footer />
     </div>
   );
 };
diff --git a/dictation_client/src/pages/UserVerifyPage/index.tsx b/dictation_client/src/pages/UserVerifyPage/index.tsx
index f573ffb..5e57b3b 100644
--- a/dictation_client/src/pages/UserVerifyPage/index.tsx
+++ b/dictation_client/src/pages/UserVerifyPage/index.tsx
@@ -15,11 +15,8 @@ const UserVerifyPage: React.FC = (): JSX.Element => {
   const jwt = query.get("verify") ?? "";
 
   useEffect(() => {
-    if (!jwt) {
-      navigate("/mail-confirm/failed");
-    }
     dispatch(userVerifyAsync({ jwt }));
-  }, [navigate, dispatch, jwt]);
+  }, [dispatch, jwt]);
 
   const verifyState = useSelector(VerifyStateSelector);
 
diff --git a/dictation_client/src/translation/de.json b/dictation_client/src/translation/de.json
index 67396de..1a3a348 100644
--- a/dictation_client/src/translation/de.json
+++ b/dictation_client/src/translation/de.json
@@ -31,7 +31,9 @@
       "tier4": "Händler",
       "tier5": "Kunde",
       "notSelected": "Keine",
-      "signOutButton": "Abmelden"
+      "signOutButton": "Abmelden",
+      "eula": "End User License Agreement",
+      "privacyNotice": "Privacy Notice"
     }
   },
   "topPage": {
@@ -51,7 +53,7 @@
       "logoAlt": "OM Dictation Management System in the Cloud"
     },
     "text": {
-      "maintenanceNotificationTitle": "(de)サービス停止のお知らせ",
+      "maintenanceNotificationTitle": "Hinweis auf geplante Wartungsarbeiten",
       "maintenanceNotification": "Aufgrund von Systemwartungsarbeiten wird ODMS Cloud ab dem 12. Juni, 6:00 Uhr UTC-Zeit, etwa eine Stunde lang nicht verfügbar sein. Wir entschuldigen uns für etwaige Unannehmlichkeiten, die während der Wartung entstanden sind."
     }
   },
@@ -652,4 +654,4 @@
       "lowerLayerId": "Lower Layer ID"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/dictation_client/src/translation/en.json b/dictation_client/src/translation/en.json
index 041783f..ec99d53 100644
--- a/dictation_client/src/translation/en.json
+++ b/dictation_client/src/translation/en.json
@@ -31,7 +31,9 @@
       "tier4": "Dealer",
       "tier5": "Customer",
       "notSelected": "None",
-      "signOutButton": "Sign out"
+      "signOutButton": "Sign out",
+      "eula": "End User License Agreement",
+      "privacyNotice": "Privacy Notice"
     }
   },
   "topPage": {
@@ -51,7 +53,7 @@
       "logoAlt": "OM Dictation Management System in the Cloud"
     },
     "text": {
-      "maintenanceNotificationTitle": "サービス停止のお知らせ",
+      "maintenanceNotificationTitle": "Notice of scheduled maintenance",
       "maintenanceNotification": "Due to system maintenance, ODMS Cloud will be unavailable for approximately one hour starting from June 12th, 6:00AM UTC time. We apologize for any inconvenience caused during the maintenance."
     }
   },
@@ -652,4 +654,4 @@
       "lowerLayerId": "Lower Layer ID"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/dictation_client/src/translation/es.json b/dictation_client/src/translation/es.json
index 2c8f63c..930f15b 100644
--- a/dictation_client/src/translation/es.json
+++ b/dictation_client/src/translation/es.json
@@ -31,7 +31,9 @@
       "tier4": "Distribuidor",
       "tier5": "Cliente",
       "notSelected": "Ninguno",
-      "signOutButton": "cerrar sesión"
+      "signOutButton": "cerrar sesión",
+      "eula": "End User License Agreement",
+      "privacyNotice": "Privacy Notice"
     }
   },
   "topPage": {
@@ -51,7 +53,7 @@
       "logoAlt": "OM Dictation Management System in the Cloud"
     },
     "text": {
-      "maintenanceNotificationTitle": "(es)サービス停止のお知らせ",
+      "maintenanceNotificationTitle": "Aviso de mantenimiento programado",
       "maintenanceNotification": "Debido al mantenimiento del sistema, ODMS Cloud no estará disponible durante aproximadamente una hora a partir del 12 de junio a las 6:00 am, hora UTC. Pedimos disculpas por cualquier inconveniente causado durante el mantenimiento."
     }
   },
@@ -652,4 +654,4 @@
       "lowerLayerId": "Lower Layer ID"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/dictation_client/src/translation/fr.json b/dictation_client/src/translation/fr.json
index 9ee60f0..7bc9f65 100644
--- a/dictation_client/src/translation/fr.json
+++ b/dictation_client/src/translation/fr.json
@@ -31,7 +31,9 @@
       "tier4": "Revendeur",
       "tier5": "Client",
       "notSelected": "Aucune",
-      "signOutButton": "se déconnecter"
+      "signOutButton": "se déconnecter",
+      "eula": "End User License Agreement",
+      "privacyNotice": "Privacy Notice"
     }
   },
   "topPage": {
@@ -51,7 +53,7 @@
       "logoAlt": "OM Dictation Management System in the Cloud"
     },
     "text": {
-      "maintenanceNotificationTitle": "(fr)サービス停止のお知らせ",
+      "maintenanceNotificationTitle": "Avis de maintenance programmée",
       "maintenanceNotification": "En raison de la maintenance du système, ODMS Cloud sera indisponible pendant environ une heure à partir du 12 juin à 6h00, heure UTC. Nous nous excusons pour tout inconvénient causé lors de la maintenance."
     }
   },
@@ -652,4 +654,4 @@
       "lowerLayerId": "Lower Layer ID"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/dictation_server/src/common/test/overrides.ts b/dictation_server/src/common/test/overrides.ts
index 4c65c7c..07e2025 100644
--- a/dictation_server/src/common/test/overrides.ts
+++ b/dictation_server/src/common/test/overrides.ts
@@ -35,6 +35,11 @@ export const overrideAdB2cService = <TService>(
       externalIds: string[],
     ) => Promise<AdB2cUser[]>;
     getUser?: (context: Context, externalId: string) => Promise<AdB2cUser>;
+    changePassword?: (
+      context: Context,
+      externalId: string,
+      password: string,
+    ) => Promise<void>;
   },
 ): void => {
   // テストコードでのみ許される強引な方法でprivateメンバ変数の参照を取得
@@ -69,6 +74,12 @@ export const overrideAdB2cService = <TService>(
       writable: true,
     });
   }
+  if (overrides.changePassword) {
+    Object.defineProperty(obj, obj.changePassword.name, {
+      value: overrides.changePassword,
+      writable: true,
+    });
+  }
 };
 
 /**
@@ -122,6 +133,8 @@ export const overrideUsersRepositoryService = <TService>(
   overrides: {
     createNormalUser?: (user: newUser) => Promise<User>;
     deleteNormalUser?: (userId: number) => Promise<void>;
+    updateUserVerified?: (context: Context, userId: number) => Promise<void>;
+    updateUserUnverified?: (context: Context, userId: number) => Promise<void>;
   },
 ): void => {
   // テストコードでのみ許される強引な方法でprivateメンバ変数の参照を取得
@@ -138,6 +151,18 @@ export const overrideUsersRepositoryService = <TService>(
       writable: true,
     });
   }
+  if (overrides.updateUserVerified) {
+    Object.defineProperty(obj, obj.updateUserVerified.name, {
+      value: overrides.updateUserVerified,
+      writable: true,
+    });
+  }
+  if (overrides.updateUserUnverified) {
+    Object.defineProperty(obj, obj.updateUserUnverified.name, {
+      value: overrides.updateUserUnverified,
+      writable: true,
+    });
+  }
 };
 
 /**
diff --git a/dictation_server/src/features/accounts/accounts.controller.spec.ts b/dictation_server/src/features/accounts/accounts.controller.spec.ts
index 454fd63..8ea840c 100644
--- a/dictation_server/src/features/accounts/accounts.controller.spec.ts
+++ b/dictation_server/src/features/accounts/accounts.controller.spec.ts
@@ -8,6 +8,7 @@ import {
   DeletePartnerAccountRequest,
   GetPartnerUsersRequest,
   UpdatePartnerInfoRequest,
+  CreateWorktypesRequest,
 } from './types/types';
 import { plainToClass } from 'class-transformer';
 import { validate } from 'class-validator';
@@ -41,6 +42,88 @@ describe('AccountsController', () => {
     expect(controller).toBeDefined();
   });
 
+  describe('valdation CreateWorktypesRequest', () => {
+    it('最低限の有効なリクエストが成功する', async () => {
+      const request = new CreateWorktypesRequest();
+      request.worktypeId = 'TEST';
+
+      const valdationObject = plainToClass(CreateWorktypesRequest, request);
+
+      const errors = await validate(valdationObject);
+      expect(errors.length).toBe(0);
+    });
+    it('worktypeIdが指定されていない場合、リクエストが失敗する', async () => {
+      const request = new CreateWorktypesRequest();
+
+      const valdationObject = plainToClass(CreateWorktypesRequest, request);
+
+      const errors = await validate(valdationObject);
+      expect(errors.length).toBe(1);
+    });
+    it('worktypeIdが空文字の場合、リクエストが失敗する', async () => {
+      const request = new CreateWorktypesRequest();
+      request.worktypeId = '';
+
+      const valdationObject = plainToClass(CreateWorktypesRequest, request);
+
+      const errors = await validate(valdationObject);
+      expect(errors.length).toBe(1);
+    });
+    it('worktypeIdが16文字を超える場合、リクエストが失敗する', async () => {
+      const request = new CreateWorktypesRequest();
+      request.worktypeId = '123456789A1234567';
+
+      const valdationObject = plainToClass(CreateWorktypesRequest, request);
+
+      const errors = await validate(valdationObject);
+      expect(errors.length).toBe(1);
+    });
+    it('worktypeIdが16文字の場合、リクエストが成功する', async () => {
+      const request = new CreateWorktypesRequest();
+      request.worktypeId = '123456789A123456';
+
+      const valdationObject = plainToClass(CreateWorktypesRequest, request);
+
+      const errors = await validate(valdationObject);
+      expect(errors.length).toBe(0);
+    });
+    it('worktypeIdに使用不可文字が含まれる場合、リクエストが失敗する', async () => {
+      const request = new CreateWorktypesRequest();
+      request.worktypeId = 'test.test';
+
+      const valdationObject = plainToClass(CreateWorktypesRequest, request);
+
+      const errors = await validate(valdationObject);
+      expect(errors.length).toBe(1);
+    });
+    it('descriptionが255文字を超える場合、リクエストが失敗する', async () => {
+      const request = new CreateWorktypesRequest();
+      request.worktypeId = 'TEST';
+      request.description =
+        '1234567A0A1234567A1A1234567A2A1234567A3A1234567A4A1234567A5A1234567A6A1234567A7A1234567A8A1234567A9A' +
+        '1234567B0B1234567B1B1234567B2B1234567B3B1234567B4B1234567B5B1234567B6B1234567B7B1234567B8B1234567B9B' +
+        '1234567A0A1234567A1A1234567A2A1234567A3A1234567A4A123456';
+
+      const valdationObject = plainToClass(CreateWorktypesRequest, request);
+
+      const errors = await validate(valdationObject);
+      expect(errors.length).toBe(1);
+    });
+    it('descriptionが255文字の場合、リクエストが成功する', async () => {
+      const request = new CreateWorktypesRequest();
+      request.worktypeId = 'TEST';
+      request.description =
+        '1234567A0A1234567A1A1234567A2A1234567A3A1234567A4A1234567A5A1234567A6A1234567A7A1234567A8A1234567A9A' +
+        '1234567B0B1234567B1B1234567B2B1234567B3B1234567B4B1234567B5B1234567B6B1234567B7B1234567B8B1234567B9B' +
+        '1234567A0A1234567A1A1234567A2A1234567A3A1234567A4A12345';
+
+      const valdationObject = plainToClass(CreateWorktypesRequest, request);
+
+      const errors = await validate(valdationObject);
+      expect(errors.length).toBe(0);
+    });
+  });
+
   describe('valdation switchParentRequest', () => {
     it('最低限の有効なリクエストが成功する', async () => {
       const request = new SwitchParentRequest();
diff --git a/dictation_server/src/features/notification/notification.controller.spec.ts b/dictation_server/src/features/notification/notification.controller.spec.ts
index bbf71a7..7f95d10 100644
--- a/dictation_server/src/features/notification/notification.controller.spec.ts
+++ b/dictation_server/src/features/notification/notification.controller.spec.ts
@@ -2,6 +2,9 @@ import { Test, TestingModule } from '@nestjs/testing';
 import { NotificationController } from './notification.controller';
 import { NotificationService } from './notification.service';
 import { ConfigModule } from '@nestjs/config';
+import { RegisterRequest } from './types/types';
+import { plainToClass } from 'class-transformer';
+import { validate } from 'class-validator';
 
 describe('NotificationController', () => {
   let controller: NotificationController;
@@ -28,3 +31,57 @@ describe('NotificationController', () => {
     expect(controller).toBeDefined();
   });
 });
+
+describe('valdation register', () => {
+  it('有効なリクエストが成功する(wns)', async () => {
+    const request = new RegisterRequest();
+    request.pns = 'wns';
+    request.handler = 'test';
+
+    const valdationObject = plainToClass(RegisterRequest, request);
+
+    const errors = await validate(valdationObject);
+    expect(errors.length).toBe(0);
+  });
+  it('有効なリクエストが成功する(apn)', async () => {
+    const request = new RegisterRequest();
+    request.pns = 'apns';
+    request.handler = 'test';
+
+    const valdationObject = plainToClass(RegisterRequest, request);
+
+    const errors = await validate(valdationObject);
+    expect(errors.length).toBe(0);
+  });
+  it('pnsが不正（wns or apns以外）な場合、リクエストが失敗する', async () => {
+    const request = new RegisterRequest();
+    request.pns = 'invalid';
+    request.handler = 'test';
+
+    const valdationObject = plainToClass(RegisterRequest, request);
+
+    const errors = await validate(valdationObject);
+    expect(errors.length).toBe(1);
+  });
+  it('handlerが空文字の場合、リクエストが失敗する', async () => {
+    const request = new RegisterRequest();
+    request.pns = 'apns';
+    request.handler = '';
+
+    const valdationObject = plainToClass(RegisterRequest, request);
+
+    const errors = await validate(valdationObject);
+    expect(errors.length).toBe(1);
+  });
+  it('handlerが文字列でない場合、リクエストが失敗する', async () => {
+    const request = {
+      pns: 'apns',
+      handler: 123,
+    };
+
+    const valdationObject = plainToClass(RegisterRequest, request);
+
+    const errors = await validate(valdationObject);
+    expect(errors.length).toBe(1);
+  });
+});
diff --git a/dictation_server/src/features/users/users.service.spec.ts b/dictation_server/src/features/users/users.service.spec.ts
index 5246e06..e85a332 100644
--- a/dictation_server/src/features/users/users.service.spec.ts
+++ b/dictation_server/src/features/users/users.service.spec.ts
@@ -8,7 +8,6 @@ import {
   makeDefaultUsersRepositoryMockValue,
   makeUsersServiceMock,
 } from './test/users.service.mock';
-import { EmailAlreadyVerifiedError } from '../../repositories/users/errors/types';
 import {
   createLicense,
   createUserGroup,
@@ -22,6 +21,7 @@ import {
   LICENSE_ALLOCATED_STATUS,
   LICENSE_EXPIRATION_THRESHOLD_DAYS,
   LICENSE_TYPE,
+  MANUAL_RECOVERY_REQUIRED,
   TASK_STATUS,
   USER_AUDIO_FORMAT,
   USER_LICENSE_EXPIRY_STATUS,
@@ -59,6 +59,7 @@ import { createTask } from '../files/test/utility';
 import { createCheckoutPermissions } from '../tasks/test/utility';
 import { MultipleImportErrors } from './types/types';
 import { TestLogger } from '../../common/test/logger';
+import { SendGridService } from '../../gateways/sendgrid/sendgrid.service';
 
 describe('UsersService.confirmUser', () => {
   let source: DataSource | null = null;
@@ -254,216 +255,564 @@ describe('UsersService.confirmUser', () => {
 });
 
 describe('UsersService.confirmUserAndInitPassword', () => {
+  let source: DataSource | null = null;
+  beforeAll(async () => {
+    if (source == null) {
+      source = await (async () => {
+        const s = new DataSource({
+          type: 'mysql',
+          host: 'test_mysql_db',
+          port: 3306,
+          username: 'user',
+          password: 'password',
+          database: 'odms',
+          entities: [__dirname + '/../../**/*.entity{.ts,.js}'],
+          synchronize: false, // trueにすると自動的にmigrationが行われるため注意
+          logger: new TestLogger('none'),
+          logging: true,
+        });
+        return await s.initialize();
+      })();
+    }
+  });
+
+  beforeEach(async () => {
+    if (source) {
+      await truncateAllTable(source);
+    }
+  });
+
+  afterAll(async () => {
+    await source?.destroy();
+    source = null;
+  });
   it('ユーザーが発行されたパスワードでログインできるようにする', async () => {
-    const usersRepositoryMockValue = makeDefaultUsersRepositoryMockValue();
-    usersRepositoryMockValue.findUserById = {
-      id: 1,
-      external_id: 'TEST9999',
-      account_id: 1,
-      role: 'None',
-      accepted_eula_version: 'string',
-      accepted_privacy_notice_version: 'string',
-      accepted_dpa_version: 'string',
-      email_verified: false,
-      created_by: 'string;',
-      created_at: new Date(),
-      updated_by: 'string;',
-      updated_at: new Date(),
-      auto_renew: true,
-      notification: true,
-      encryption: false,
-      prompt: false,
-      account: null,
-      author_id: null,
-      deleted_at: null,
-      encryption_password: null,
-      license: null,
-      userGroupMembers: null,
-    };
-    const licensesRepositoryMockValue = null;
-    const adb2cParam = makeDefaultAdB2cMockValue();
-    const configMockValue = makeDefaultConfigValue();
-    const sortCriteriaRepositoryMockValue =
-      makeDefaultSortCriteriaRepositoryMockValue();
-    const sendGridMockValue = makeDefaultSendGridlValue();
-    const service = await makeUsersServiceMock(
-      usersRepositoryMockValue,
-      licensesRepositoryMockValue,
-      adb2cParam,
-      sendGridMockValue,
-      configMockValue,
-      sortCriteriaRepositoryMockValue,
+    if (!source) fail();
+    const module = await makeTestingModule(source);
+    if (!module) fail();
+    const service = module.get<UsersService>(UsersService);
+    const adminExternalId = 'ADMIN0001';
+    const { account } = await makeTestAccount(
+      source,
+      {},
+      { external_id: adminExternalId },
     );
+    const { id: accountId } = account;
+    // ユーザー作成
+    await makeTestUser(source, {
+      account_id: accountId,
+      external_id: 'externalId_user1',
+      role: USER_ROLES.NONE,
+      author_id: undefined,
+      auto_renew: true,
+      encryption: false,
+      encryption_password: undefined,
+      prompt: false,
+      email_verified: false,
+    });
+
+    overrideAdB2cService(service, {
+      changePassword: jest.fn(),
+      getUser: async () => {
+        return {
+          id: adminExternalId,
+          displayName: 'admin',
+        };
+      },
+    });
+    let _subject: string = '';
+    overrideSendgridService(service, {
+      sendMail: async (
+        context: Context,
+        to: string[],
+        cc: string[],
+        from: string,
+        subject: string,
+        text: string,
+        html: string,
+      ) => {
+        _subject = subject;
+      },
+    });
 
     const token =
       'eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJhY2NvdW50SWQiOjEsInVzZXJJZCI6MiwiZW1haWwiOiJ4eHhAeHh4Lnh4eCIsImlhdCI6MTAwMDAwMDAwMCwiZXhwIjo5MDAwMDAwMDAwfQ.26L6BdNg-3TbyKT62PswlJ6RPMkcTtHzlDXW2Uo9XbMPVSrl2ObcuS6EcXjFFN2DEfNTKbqX_zevIWMpHOAdLNgGhk528nLrBrNvPASqtTjvW9muxMXpjUdjRVkmVbOylBHWW3YpWL9JEbJQ7rAzWDfaIdPhMovdaxumnZt_UwnlnrdaVPLACW7tkH_laEcAU507iSiM4mqxxG8FuTs34t6PEdwRuzZAQPN2IOPYNSvGNdJYryPacSeSNZ_z1xeBYXLOLQfOBZzyTReYDOhXdikhrNUbxjgnZQlSXBCVMlZ9PH42bHfp-LJIeJzW0yqnF6oLklvJP-fo8eW0k5iDOw';
-    expect(
+    await service.confirmUserAndInitPassword(
+      makeContext('trackingId', 'requestId'),
+      token,
+    );
+    expect(_subject).toBe('Temporary password [U-113]');
+    const user = await getUserFromExternalId(source, 'externalId_user1');
+    expect(user?.email_verified).toBe(true);
+  });
+  it('トークンの形式が不正な場合、形式不正エラーとなる。(メール認証API)', async () => {
+    if (!source) fail();
+    const module = await makeTestingModule(source);
+    if (!module) fail();
+    const service = module.get<UsersService>(UsersService);
+    const sendgridService = module.get<SendGridService>(SendGridService);
+    const adB2cService = module.get<AdB2cService>(AdB2cService);
+    const adminExternalId = 'ADMIN0001';
+    const { account } = await makeTestAccount(
+      source,
+      {},
+      { external_id: adminExternalId },
+    );
+    const { id: accountId } = account;
+    // ユーザー作成
+    await makeTestUser(source, {
+      account_id: accountId,
+      external_id: 'externalId_user1',
+      role: USER_ROLES.NONE,
+      author_id: undefined,
+      auto_renew: true,
+      encryption: false,
+      encryption_password: undefined,
+      prompt: false,
+      email_verified: false,
+    });
+
+    overrideAdB2cService(service, {
+      changePassword: jest.fn(),
+      getUser: async () => {
+        return {
+          id: adminExternalId,
+          displayName: 'admin',
+        };
+      },
+    });
+    overrideSendgridService(service, {
+      sendMail: jest.fn(),
+    });
+
+    const token = 'invalid.id.token';
+
+    try {
       await service.confirmUserAndInitPassword(
         makeContext('trackingId', 'requestId'),
         token,
-      ),
-    ).toEqual(undefined);
-  });
-
-  it('トークンの形式が不正な場合、形式不正エラーとなる。(メール認証API)', async () => {
-    const usersRepositoryMockValue = makeDefaultUsersRepositoryMockValue();
-    usersRepositoryMockValue.findUserById = {
-      id: 1,
-      external_id: 'TEST9999',
-      account_id: 1,
-      role: 'None',
-      accepted_eula_version: 'string',
-      accepted_privacy_notice_version: 'string',
-      accepted_dpa_version: 'string',
-      email_verified: false,
-      created_by: 'string;',
-      created_at: new Date(),
-      updated_by: 'string;',
-      updated_at: new Date(),
-      auto_renew: true,
-      notification: true,
-      encryption: false,
-      prompt: false,
-      account: null,
-      author_id: null,
-      deleted_at: null,
-      encryption_password: null,
-      license: null,
-      userGroupMembers: null,
-    };
-    const licensesRepositoryMockValue = null;
-    const adb2cParam = makeDefaultAdB2cMockValue();
-    const sendGridMockValue = makeDefaultSendGridlValue();
-    const configMockValue = makeDefaultConfigValue();
-    const sortCriteriaRepositoryMockValue =
-      makeDefaultSortCriteriaRepositoryMockValue();
-    const service = await makeUsersServiceMock(
-      usersRepositoryMockValue,
-      licensesRepositoryMockValue,
-      adb2cParam,
-      sendGridMockValue,
-      configMockValue,
-      sortCriteriaRepositoryMockValue,
-    );
-    const token = 'invalid.id.token';
-    await expect(
-      service.confirmUserAndInitPassword(
-        makeContext('trackingId', 'requestId'),
-        token,
-      ),
-    ).rejects.toEqual(
-      new HttpException(makeErrorResponse('E000101'), HttpStatus.BAD_REQUEST),
-    );
+      );
+    } catch (e) {
+      if (e instanceof HttpException) {
+        expect(e.getStatus()).toEqual(HttpStatus.BAD_REQUEST);
+        expect(e.getResponse()).toEqual(makeErrorResponse('E000101'));
+      } else {
+        fail();
+      }
+    }
+    const user = await getUserFromExternalId(source, 'externalId_user1');
+    // ユーザーが認証されていないことを確認
+    expect(user?.email_verified).toBe(false);
+    // メールが送信されていないことを確認
+    expect(sendgridService.sendMail).toBeCalledTimes(0);
+    // パスワードが変更されていないことを確認
+    expect(adB2cService.changePassword).toBeCalledTimes(0);
   });
   it('ユーザが既に認証済みだった場合、認証済みユーザエラーとなる。(メール認証API)', async () => {
-    const usersRepositoryMockValue = makeDefaultUsersRepositoryMockValue();
-    usersRepositoryMockValue.findUserById = {
-      id: 1,
-      external_id: 'TEST9999',
-      account_id: 1,
-      role: 'None',
-      accepted_eula_version: 'string',
-      accepted_privacy_notice_version: 'string',
-      accepted_dpa_version: 'string',
-      email_verified: true,
-      created_by: 'string;',
-      created_at: new Date(),
-      updated_by: 'string;',
-      updated_at: new Date(),
+    if (!source) fail();
+    const module = await makeTestingModule(source);
+    if (!module) fail();
+    const service = module.get<UsersService>(UsersService);
+    const sendgridService = module.get<SendGridService>(SendGridService);
+    const adB2cService = module.get<AdB2cService>(AdB2cService);
+    const adminExternalId = 'ADMIN0001';
+    const { account } = await makeTestAccount(
+      source,
+      {},
+      { external_id: adminExternalId },
+    );
+    const { id: accountId } = account;
+    // ユーザー作成
+    await makeTestUser(source, {
+      account_id: accountId,
+      external_id: 'externalId_user1',
+      role: USER_ROLES.NONE,
+      author_id: undefined,
       auto_renew: true,
-      notification: true,
       encryption: false,
+      encryption_password: undefined,
       prompt: false,
-      account: null,
-      author_id: null,
-      deleted_at: null,
-      encryption_password: null,
-      license: null,
-      userGroupMembers: null,
-    };
-    const licensesRepositoryMockValue = null;
-    const adb2cParam = makeDefaultAdB2cMockValue();
-    const sendGridMockValue = makeDefaultSendGridlValue();
-    const configMockValue = makeDefaultConfigValue();
-    const sortCriteriaRepositoryMockValue =
-      makeDefaultSortCriteriaRepositoryMockValue();
-    usersRepositoryMockValue.updateUserVerified = new EmailAlreadyVerifiedError(
-      `Email already verified user`,
-    );
+      email_verified: true, // emailを認証済みにする
+    });
+
+    overrideAdB2cService(service, {
+      changePassword: jest.fn(),
+      getUser: async () => {
+        return {
+          id: adminExternalId,
+          displayName: 'admin',
+        };
+      },
+    });
+    overrideSendgridService(service, {
+      sendMail: jest.fn(),
+    });
 
-    const service = await makeUsersServiceMock(
-      usersRepositoryMockValue,
-      licensesRepositoryMockValue,
-      adb2cParam,
-      sendGridMockValue,
-      configMockValue,
-      sortCriteriaRepositoryMockValue,
-    );
     const token =
       'eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJhY2NvdW50SWQiOjEsInVzZXJJZCI6MiwiZW1haWwiOiJ4eHhAeHh4Lnh4eCIsImlhdCI6MTAwMDAwMDAwMCwiZXhwIjo5MDAwMDAwMDAwfQ.26L6BdNg-3TbyKT62PswlJ6RPMkcTtHzlDXW2Uo9XbMPVSrl2ObcuS6EcXjFFN2DEfNTKbqX_zevIWMpHOAdLNgGhk528nLrBrNvPASqtTjvW9muxMXpjUdjRVkmVbOylBHWW3YpWL9JEbJQ7rAzWDfaIdPhMovdaxumnZt_UwnlnrdaVPLACW7tkH_laEcAU507iSiM4mqxxG8FuTs34t6PEdwRuzZAQPN2IOPYNSvGNdJYryPacSeSNZ_z1xeBYXLOLQfOBZzyTReYDOhXdikhrNUbxjgnZQlSXBCVMlZ9PH42bHfp-LJIeJzW0yqnF6oLklvJP-fo8eW0k5iDOw';
-    await expect(
-      service.confirmUserAndInitPassword(
+
+    try {
+      await service.confirmUserAndInitPassword(
         makeContext('trackingId', 'requestId'),
         token,
-      ),
-    ).rejects.toEqual(
-      new HttpException(makeErrorResponse('E010202'), HttpStatus.BAD_REQUEST),
+      );
+    } catch (e) {
+      if (e instanceof HttpException) {
+        expect(e.getStatus()).toEqual(HttpStatus.BAD_REQUEST);
+        expect(e.getResponse()).toEqual(makeErrorResponse('E010202'));
+      } else {
+        fail();
+      }
+    }
+    const user = await getUserFromExternalId(source, 'externalId_user1');
+    // ユーザーが認証されていることを確認
+    expect(user?.email_verified).toBe(true);
+    // メールが送信されていないことを確認
+    expect(sendgridService.sendMail).toBeCalledTimes(0);
+    // パスワードが変更されていないことを確認
+    expect(adB2cService.changePassword).toBeCalledTimes(0);
+  });
+  it('ADB2Cユーザーのパスワード更新に失敗した場合、リカバリ処理を行い、メールを未認証のままにする。(メール認証API)', async () => {
+    if (!source) fail();
+    const module = await makeTestingModule(source);
+    if (!module) fail();
+    const service = module.get<UsersService>(UsersService);
+    const sendgridService = module.get<SendGridService>(SendGridService);
+    const adminExternalId = 'ADMIN0001';
+    const { account } = await makeTestAccount(
+      source,
+      {},
+      { external_id: adminExternalId },
     );
+    const { id: accountId } = account;
+    // ユーザー作成
+    await makeTestUser(source, {
+      account_id: accountId,
+      external_id: 'externalId_user1',
+      role: USER_ROLES.NONE,
+      author_id: undefined,
+      auto_renew: true,
+      encryption: false,
+      encryption_password: undefined,
+      prompt: false,
+      email_verified: false,
+    });
+
+    overrideAdB2cService(service, {
+      changePassword: async () => {
+        throw new Error('ADB2C Error');
+      },
+      getUser: async () => {
+        return {
+          id: adminExternalId,
+          displayName: 'admin',
+        };
+      },
+    });
+    overrideSendgridService(service, {
+      sendMail: jest.fn(),
+    });
+
+    const token =
+      'eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJhY2NvdW50SWQiOjEsInVzZXJJZCI6MiwiZW1haWwiOiJ4eHhAeHh4Lnh4eCIsImlhdCI6MTAwMDAwMDAwMCwiZXhwIjo5MDAwMDAwMDAwfQ.26L6BdNg-3TbyKT62PswlJ6RPMkcTtHzlDXW2Uo9XbMPVSrl2ObcuS6EcXjFFN2DEfNTKbqX_zevIWMpHOAdLNgGhk528nLrBrNvPASqtTjvW9muxMXpjUdjRVkmVbOylBHWW3YpWL9JEbJQ7rAzWDfaIdPhMovdaxumnZt_UwnlnrdaVPLACW7tkH_laEcAU507iSiM4mqxxG8FuTs34t6PEdwRuzZAQPN2IOPYNSvGNdJYryPacSeSNZ_z1xeBYXLOLQfOBZzyTReYDOhXdikhrNUbxjgnZQlSXBCVMlZ9PH42bHfp-LJIeJzW0yqnF6oLklvJP-fo8eW0k5iDOw';
+    try {
+      await service.confirmUserAndInitPassword(
+        makeContext('trackingId', 'requestId'),
+        token,
+      );
+    } catch (e) {
+      if (e instanceof HttpException) {
+        expect(e.getStatus()).toEqual(HttpStatus.INTERNAL_SERVER_ERROR);
+        expect(e.getResponse()).toEqual(makeErrorResponse('E009999'));
+      } else {
+        fail();
+      }
+    }
+    const user = await getUserFromExternalId(source, 'externalId_user1');
+    // ユーザーが認証されていないことを確認
+    expect(user?.email_verified).toBe(false);
+    // メールが送信されていないことを確認
+    expect(sendgridService.sendMail).toBeCalledTimes(0);
+  });
+  it('ADB2Cユーザーのパスワード更新に失敗した場合、リカバリ処理を行うが、リカバリ処理に失敗すると認証のままになる(メール認証API)', async () => {
+    if (!source) fail();
+    const module = await makeTestingModule(source);
+    if (!module) fail();
+    const service = module.get<UsersService>(UsersService);
+    const sendgridService = module.get<SendGridService>(SendGridService);
+    const adminExternalId = 'ADMIN0001';
+    const { account } = await makeTestAccount(
+      source,
+      {},
+      { external_id: adminExternalId },
+    );
+    const { id: accountId } = account;
+    // ユーザー作成
+    await makeTestUser(source, {
+      account_id: accountId,
+      external_id: 'externalId_user1',
+      role: USER_ROLES.NONE,
+      author_id: undefined,
+      auto_renew: true,
+      encryption: false,
+      encryption_password: undefined,
+      prompt: false,
+      email_verified: false,
+    });
+
+    const loggerSpy = jest
+      .spyOn(service['logger'], 'error')
+      .mockImplementation();
+
+    overrideAdB2cService(service, {
+      changePassword: async () => {
+        throw new Error('ADB2C Error');
+      },
+      getUser: async () => {
+        return {
+          id: adminExternalId,
+          displayName: 'admin',
+        };
+      },
+    });
+    overrideUsersRepositoryService(service, {
+      updateUserUnverified: async () => {
+        throw new Error('DB Error');
+      },
+    });
+    overrideSendgridService(service, {
+      sendMail: jest.fn(),
+    });
+
+    const token =
+      'eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJhY2NvdW50SWQiOjEsInVzZXJJZCI6MiwiZW1haWwiOiJ4eHhAeHh4Lnh4eCIsImlhdCI6MTAwMDAwMDAwMCwiZXhwIjo5MDAwMDAwMDAwfQ.26L6BdNg-3TbyKT62PswlJ6RPMkcTtHzlDXW2Uo9XbMPVSrl2ObcuS6EcXjFFN2DEfNTKbqX_zevIWMpHOAdLNgGhk528nLrBrNvPASqtTjvW9muxMXpjUdjRVkmVbOylBHWW3YpWL9JEbJQ7rAzWDfaIdPhMovdaxumnZt_UwnlnrdaVPLACW7tkH_laEcAU507iSiM4mqxxG8FuTs34t6PEdwRuzZAQPN2IOPYNSvGNdJYryPacSeSNZ_z1xeBYXLOLQfOBZzyTReYDOhXdikhrNUbxjgnZQlSXBCVMlZ9PH42bHfp-LJIeJzW0yqnF6oLklvJP-fo8eW0k5iDOw';
+    try {
+      await service.confirmUserAndInitPassword(
+        makeContext('trackingId', 'requestId'),
+        token,
+      );
+    } catch (e) {
+      if (e instanceof HttpException) {
+        expect(e.getStatus()).toEqual(HttpStatus.INTERNAL_SERVER_ERROR);
+        expect(e.getResponse()).toEqual(makeErrorResponse('E009999'));
+      } else {
+        fail();
+      }
+    }
+    const user = await getUserFromExternalId(source, 'externalId_user1');
+    // ユーザーが認証されたままであることを確認
+    expect(user?.email_verified).toBe(true);
+    // メールが送信されていないことを確認
+    expect(sendgridService.sendMail).toBeCalledTimes(0);
+    // loggerSpyがスパイしているlogger.logメソッドが出力したログを確認（目視確認用）
+    const logs = loggerSpy.mock.calls.map((call) => call[0]);
+    // 手動復旧が必要なエラーログが出力されていること
+    expect(logs.some((x) => x.startsWith(MANUAL_RECOVERY_REQUIRED))).toBe(true);
   });
   it('DBネットワークエラーとなる場合、エラーとなる。(メール認証API)', async () => {
-    const usersRepositoryMockValue = makeDefaultUsersRepositoryMockValue();
-    usersRepositoryMockValue.findUserById = {
-      id: 1,
-      external_id: 'TEST9999',
-      account_id: 1,
-      role: 'None',
-      accepted_eula_version: 'string',
-      accepted_privacy_notice_version: 'string',
-      accepted_dpa_version: 'string',
-      email_verified: false,
-      created_by: 'string;',
-      created_at: new Date(),
-      updated_by: 'string;',
-      updated_at: new Date(),
-      auto_renew: true,
-      notification: true,
-      encryption: false,
-      prompt: false,
-      account: null,
-      author_id: null,
-      deleted_at: null,
-      encryption_password: null,
-      license: null,
-      userGroupMembers: null,
-    };
-    const licensesRepositoryMockValue = null;
-    const adb2cParam = makeDefaultAdB2cMockValue();
-    const sendGridMockValue = makeDefaultSendGridlValue();
-    usersRepositoryMockValue.updateUserVerified = new Error('DB error');
-    const configMockValue = makeDefaultConfigValue();
-    const sortCriteriaRepositoryMockValue =
-      makeDefaultSortCriteriaRepositoryMockValue();
-    const service = await makeUsersServiceMock(
-      usersRepositoryMockValue,
-      licensesRepositoryMockValue,
-      adb2cParam,
-      sendGridMockValue,
-      configMockValue,
-      sortCriteriaRepositoryMockValue,
+    if (!source) fail();
+    const module = await makeTestingModule(source);
+    if (!module) fail();
+    const service = module.get<UsersService>(UsersService);
+    const sendgridService = module.get<SendGridService>(SendGridService);
+    const adB2cService = module.get<AdB2cService>(AdB2cService);
+    const adminExternalId = 'ADMIN0001';
+    const { account } = await makeTestAccount(
+      source,
+      {},
+      { external_id: adminExternalId },
     );
+    const { id: accountId } = account;
+    // ユーザー作成
+    await makeTestUser(source, {
+      account_id: accountId,
+      external_id: 'externalId_user1',
+      role: USER_ROLES.NONE,
+      author_id: undefined,
+      auto_renew: true,
+      encryption: false,
+      encryption_password: undefined,
+      prompt: false,
+      email_verified: false,
+    });
+
+    overrideAdB2cService(service, {
+      changePassword: jest.fn(),
+      getUser: async () => {
+        return {
+          id: adminExternalId,
+          displayName: 'admin',
+        };
+      },
+    });
+    overrideSendgridService(service, {
+      sendMail: jest.fn(),
+    });
+    // DBエラーを発生させる
+    overrideUsersRepositoryService(service, {
+      updateUserVerified: async () => {
+        throw new Error('DB Error');
+      },
+    });
+
     const token =
       'eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJhY2NvdW50SWQiOjEsInVzZXJJZCI6MiwiZW1haWwiOiJ4eHhAeHh4Lnh4eCIsImlhdCI6MTAwMDAwMDAwMCwiZXhwIjo5MDAwMDAwMDAwfQ.26L6BdNg-3TbyKT62PswlJ6RPMkcTtHzlDXW2Uo9XbMPVSrl2ObcuS6EcXjFFN2DEfNTKbqX_zevIWMpHOAdLNgGhk528nLrBrNvPASqtTjvW9muxMXpjUdjRVkmVbOylBHWW3YpWL9JEbJQ7rAzWDfaIdPhMovdaxumnZt_UwnlnrdaVPLACW7tkH_laEcAU507iSiM4mqxxG8FuTs34t6PEdwRuzZAQPN2IOPYNSvGNdJYryPacSeSNZ_z1xeBYXLOLQfOBZzyTReYDOhXdikhrNUbxjgnZQlSXBCVMlZ9PH42bHfp-LJIeJzW0yqnF6oLklvJP-fo8eW0k5iDOw';
-    await expect(
-      service.confirmUserAndInitPassword(
+    try {
+      await service.confirmUserAndInitPassword(
         makeContext('trackingId', 'requestId'),
         token,
-      ),
-    ).rejects.toEqual(
-      new HttpException(
-        makeErrorResponse('E009999'),
-        HttpStatus.INTERNAL_SERVER_ERROR,
-      ),
+      );
+    } catch (e) {
+      if (e instanceof HttpException) {
+        expect(e.getStatus()).toEqual(HttpStatus.INTERNAL_SERVER_ERROR);
+        expect(e.getResponse()).toEqual(makeErrorResponse('E009999'));
+      } else {
+        fail();
+      }
+    }
+    const user = await getUserFromExternalId(source, 'externalId_user1');
+    // ユーザーが認証されていないことを確認
+    expect(user?.email_verified).toBe(false);
+    // メールが送信されていないことを確認
+    expect(sendgridService.sendMail).toBeCalledTimes(0);
+    // パスワードが変更されていないことを確認
+    expect(adB2cService.changePassword).toBeCalledTimes(0);
+  });
+  it('メール送信に失敗した場合、リカバリ処理を行い、メールを未認証の状態にする。(メール認証API)', async () => {
+    if (!source) fail();
+    const module = await makeTestingModule(source);
+    if (!module) fail();
+    const service = module.get<UsersService>(UsersService);
+    const adb2cService = module.get<AdB2cService>(AdB2cService);
+    const adminExternalId = 'ADMIN0001';
+    const { account } = await makeTestAccount(
+      source,
+      {},
+      { external_id: adminExternalId },
     );
+    const { id: accountId } = account;
+    // ユーザー作成
+    await makeTestUser(source, {
+      account_id: accountId,
+      external_id: 'externalId_user1',
+      role: USER_ROLES.NONE,
+      author_id: undefined,
+      auto_renew: true,
+      encryption: false,
+      encryption_password: undefined,
+      prompt: false,
+      email_verified: false,
+    });
+
+    overrideAdB2cService(service, {
+      changePassword: jest.fn(),
+      getUser: async () => {
+        return {
+          id: adminExternalId,
+          displayName: 'admin',
+        };
+      },
+    });
+    overrideSendgridService(service, {
+      sendMail: async () => {
+        throw new Error('SendGrid Error');
+      },
+    });
+
+    const token =
+      'eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJhY2NvdW50SWQiOjEsInVzZXJJZCI6MiwiZW1haWwiOiJ4eHhAeHh4Lnh4eCIsImlhdCI6MTAwMDAwMDAwMCwiZXhwIjo5MDAwMDAwMDAwfQ.26L6BdNg-3TbyKT62PswlJ6RPMkcTtHzlDXW2Uo9XbMPVSrl2ObcuS6EcXjFFN2DEfNTKbqX_zevIWMpHOAdLNgGhk528nLrBrNvPASqtTjvW9muxMXpjUdjRVkmVbOylBHWW3YpWL9JEbJQ7rAzWDfaIdPhMovdaxumnZt_UwnlnrdaVPLACW7tkH_laEcAU507iSiM4mqxxG8FuTs34t6PEdwRuzZAQPN2IOPYNSvGNdJYryPacSeSNZ_z1xeBYXLOLQfOBZzyTReYDOhXdikhrNUbxjgnZQlSXBCVMlZ9PH42bHfp-LJIeJzW0yqnF6oLklvJP-fo8eW0k5iDOw';
+    try {
+      await service.confirmUserAndInitPassword(
+        makeContext('trackingId', 'requestId'),
+        token,
+      );
+    } catch (e) {
+      if (e instanceof HttpException) {
+        expect(e.getStatus()).toEqual(HttpStatus.INTERNAL_SERVER_ERROR);
+        expect(e.getResponse()).toEqual(makeErrorResponse('E009999'));
+      } else {
+        fail();
+      }
+    }
+    const user = await getUserFromExternalId(source, 'externalId_user1');
+    // ユーザーが認証されていないことを確認
+    expect(user?.email_verified).toBe(false);
+    // ADB2Cのパスワードが変更されていることを確認(パスワードは変更されても、ユーザーにメールが届いていないので問題ない)
+    expect(adb2cService.changePassword).toBeCalledTimes(1);
+  });
+  it('メール送信に失敗した場合、リカバリ処理を行うが、リカバリ処理に失敗するとADB2Cのパスワードが変更され、DB上も認証された状態になる(メール認証API)', async () => {
+    if (!source) fail();
+    const module = await makeTestingModule(source);
+    if (!module) fail();
+    const service = module.get<UsersService>(UsersService);
+    const adB2cService = module.get<AdB2cService>(AdB2cService);
+    const adminExternalId = 'ADMIN0001';
+    const { account } = await makeTestAccount(
+      source,
+      {},
+      { external_id: adminExternalId },
+    );
+    const { id: accountId } = account;
+    // ユーザー作成
+    await makeTestUser(source, {
+      account_id: accountId,
+      external_id: 'externalId_user1',
+      role: USER_ROLES.NONE,
+      author_id: undefined,
+      auto_renew: true,
+      encryption: false,
+      encryption_password: undefined,
+      prompt: false,
+      email_verified: false,
+    });
+    const loggerSpy = jest
+      .spyOn(service['logger'], 'error')
+      .mockImplementation();
+
+    overrideAdB2cService(service, {
+      changePassword: jest.fn(),
+      getUser: async () => {
+        return {
+          id: adminExternalId,
+          displayName: 'admin',
+        };
+      },
+    });
+    overrideUsersRepositoryService(service, {
+      updateUserUnverified: async () => {
+        throw new Error('DB Error');
+      },
+    });
+    overrideSendgridService(service, {
+      sendMail: async () => {
+        throw new Error('SendGrid Error');
+      },
+    });
+
+    const token =
+      'eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJhY2NvdW50SWQiOjEsInVzZXJJZCI6MiwiZW1haWwiOiJ4eHhAeHh4Lnh4eCIsImlhdCI6MTAwMDAwMDAwMCwiZXhwIjo5MDAwMDAwMDAwfQ.26L6BdNg-3TbyKT62PswlJ6RPMkcTtHzlDXW2Uo9XbMPVSrl2ObcuS6EcXjFFN2DEfNTKbqX_zevIWMpHOAdLNgGhk528nLrBrNvPASqtTjvW9muxMXpjUdjRVkmVbOylBHWW3YpWL9JEbJQ7rAzWDfaIdPhMovdaxumnZt_UwnlnrdaVPLACW7tkH_laEcAU507iSiM4mqxxG8FuTs34t6PEdwRuzZAQPN2IOPYNSvGNdJYryPacSeSNZ_z1xeBYXLOLQfOBZzyTReYDOhXdikhrNUbxjgnZQlSXBCVMlZ9PH42bHfp-LJIeJzW0yqnF6oLklvJP-fo8eW0k5iDOw';
+    try {
+      await service.confirmUserAndInitPassword(
+        makeContext('trackingId', 'requestId'),
+        token,
+      );
+    } catch (e) {
+      if (e instanceof HttpException) {
+        expect(e.getStatus()).toEqual(HttpStatus.INTERNAL_SERVER_ERROR);
+        expect(e.getResponse()).toEqual(makeErrorResponse('E009999'));
+      } else {
+        fail();
+      }
+    }
+    const user = await getUserFromExternalId(source, 'externalId_user1');
+    // ユーザーが認証されたままであることを確認
+    expect(user?.email_verified).toBe(true);
+    // ADB2Cのパスワードが変更されていることを確認
+    expect(adB2cService.changePassword).toBeCalledTimes(1);
+    // loggerSpyがスパイしているlogger.logメソッドが出力したログを確認（目視確認用）
+    const logs = loggerSpy.mock.calls.map((call) => call[0]);
+    // 手動復旧が必要なエラーログが出力されていること
+    expect(logs.some((x) => x.startsWith(MANUAL_RECOVERY_REQUIRED))).toBe(true);
   });
 });
 
diff --git a/dictation_server/src/features/users/users.service.ts b/dictation_server/src/features/users/users.service.ts
index 6896e98..699efe6 100644
--- a/dictation_server/src/features/users/users.service.ts
+++ b/dictation_server/src/features/users/users.service.ts
@@ -516,46 +516,10 @@ export class UsersService {
       );
     }
 
-    // ランダムなパスワードを生成する
-    const ramdomPassword = makePassword();
     const { accountId, userId, email } = decodedToken;
-
     try {
-      // ユーザー情報からAzure AD B2CのIDを特定する
-      const user = await this.usersRepository.findUserById(context, userId);
-      const extarnalId = user.external_id;
-      // パスワードを変更する
-      await this.adB2cService.changePassword(
-        context,
-        extarnalId,
-        ramdomPassword,
-      );
       // ユーザを認証済みにする
       await this.usersRepository.updateUserVerified(context, userId);
-
-      // メール送信処理
-      try {
-        const { external_id: primaryAdminUserExternalId } =
-          await this.getPrimaryAdminUser(context, accountId);
-
-        const adb2cUser = await this.adB2cService.getUser(
-          context,
-          primaryAdminUserExternalId,
-        );
-
-        const { displayName: primaryAdminName } =
-          getUserNameAndMailAddress(adb2cUser);
-
-        await this.sendgridService.sendMailWithU113(
-          context,
-          email,
-          primaryAdminName,
-          ramdomPassword,
-        );
-      } catch (e) {
-        this.logger.error(`[${context.getTrackingId()}] error=${e}`);
-        // メール送信に関する例外はログだけ出して握りつぶす
-      }
     } catch (e) {
       this.logger.error(`[${context.getTrackingId()}] error=${e}`);
       if (e instanceof Error) {
@@ -572,6 +536,62 @@ export class UsersService {
             );
         }
       }
+    }
+
+    // ランダムなパスワードを生成する
+    const ramdomPassword = makePassword();
+    try {
+      // ユーザー情報からAzure AD B2CのIDを特定する
+      const user = await this.usersRepository.findUserById(context, userId);
+      const extarnalId = user.external_id;
+      // パスワードを変更する
+      await this.adB2cService.changePassword(
+        context,
+        extarnalId,
+        ramdomPassword,
+      );
+    } catch (e) {
+      this.logger.error(`[${context.getTrackingId()}] error=${e}`);
+      this.logger.error(
+        `[${context.getTrackingId()}] change password failed. userId=${userId}`,
+      );
+      // リカバリー処理
+      // ユーザを未認証に戻す
+      await this.updateUserUnverified(context, userId);
+
+      throw new HttpException(
+        makeErrorResponse('E009999'),
+        HttpStatus.INTERNAL_SERVER_ERROR,
+      );
+    }
+
+    // メール送信処理
+    try {
+      const { external_id: primaryAdminUserExternalId } =
+        await this.getPrimaryAdminUser(context, accountId);
+
+      const adb2cUser = await this.adB2cService.getUser(
+        context,
+        primaryAdminUserExternalId,
+      );
+
+      const { displayName: primaryAdminName } =
+        getUserNameAndMailAddress(adb2cUser);
+
+      await this.sendgridService.sendMailWithU113(
+        context,
+        email,
+        primaryAdminName,
+        ramdomPassword,
+      );
+    } catch (e) {
+      // リカバリー処理
+      // ユーザーを未認証に戻す
+      await this.updateUserUnverified(context, userId);
+      throw new HttpException(
+        makeErrorResponse('E009999'),
+        HttpStatus.INTERNAL_SERVER_ERROR,
+      );
     } finally {
       this.logger.log(
         `[OUT] [${context.getTrackingId()}] ${
@@ -1791,4 +1811,36 @@ export class UsersService {
 
     return primaryAdmin;
   }
+
+  /**
+   *  ユーザーを未認証にする
+   * @param context
+   * @param userId
+   * @returns void
+   */
+  private async updateUserUnverified(
+    context: Context,
+    userId: number,
+  ): Promise<void> {
+    this.logger.log(
+      `[IN] [${context.getTrackingId()}] ${
+        this.updateUserUnverified.name
+      } | params: { userId: ${userId} };`,
+    );
+    try {
+      await this.usersRepository.updateUserUnverified(context, userId);
+      this.logger.log(
+        `[${context.getTrackingId()}] update user unverified: ${userId}`,
+      );
+    } catch (error) {
+      this.logger.error(`[${context.getTrackingId()}] error=${error}`);
+      this.logger.error(
+        `${MANUAL_RECOVERY_REQUIRED} [${context.getTrackingId()}] Failed to update user unverified: ${userId}`,
+      );
+    } finally {
+      this.logger.log(
+        `[OUT] [${context.getTrackingId()}] ${this.updateUserUnverified.name}`,
+      );
+    }
+  }
 }
diff --git a/dictation_server/src/repositories/users/users.repository.service.ts b/dictation_server/src/repositories/users/users.repository.service.ts
index 01b0ff9..32de564 100644
--- a/dictation_server/src/repositories/users/users.repository.service.ts
+++ b/dictation_server/src/repositories/users/users.repository.service.ts
@@ -399,7 +399,7 @@ export class UsersRepositoryService {
   }
 
   /**
-   * 管理ユーザーがメール認証済みなら認証情報を更新する
+   * ユーザーがメール認証済みなら認証情報を更新する
    * @param user
    * @returns update
    */
@@ -437,6 +437,40 @@ export class UsersRepositoryService {
     });
   }
 
+  /**
+   * ユーザーをメール未認証にする
+   * @param user
+   * @param context
+   * @param id
+   * @returns void
+   */
+  async updateUserUnverified(context: Context, id: number): Promise<void> {
+    await this.dataSource.transaction(async (entityManager) => {
+      const userRepo = entityManager.getRepository(User);
+      const targetUser = await userRepo.findOne({
+        where: {
+          id: id,
+        },
+        comment: `${context.getTrackingId()}_${new Date().toUTCString()}`,
+      });
+
+      // 運用上ユーザがいないことはあり得ないが、プログラム上発生しうるのでエラーとして処理
+      if (!targetUser) {
+        throw new UserNotFoundError(`User not Found.`);
+      }
+
+      targetUser.email_verified = false;
+
+      await updateEntity(
+        userRepo,
+        { id: targetUser.id },
+        targetUser,
+        this.isCommentOut,
+        context,
+      );
+    });
+  }
+
   /**
    * Emailを認証済みにして、トライアルライセンスを作成する
    * @param id