feat(auth): add configurable email verification enforcement

Auth:RequireEmailVerification (default off) gates whether local
register requires confirming email before login. OAuth new-user paths
are untouched -- Google/Microsoft already assert a verified email.
Adds verify-email and resend-verification-email endpoints, mirroring
the existing reset-password enumeration-avoidance and rate-limiting
patterns, plus a login-embedded resend affordance and a verify-email
landing page on the frontend.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

JobTrackerApi.Tests/AuthAndSystemControllerTests.cs

@@ -163,6 +163,209 @@ public sealed class AuthAndSystemControllerTests
         }
     }
 
+    [Fact]
+    public async Task Register_sets_EmailConfirmed_false_and_sends_verification_email_when_flag_on()
+    {
+        var config = new ConfigurationBuilder()
+            .AddInMemoryCollection(new Dictionary<string, string?>
+            {
+                ["Auth:AllowRegistration"] = "true",
+                ["Auth:RequireEmailVerification"] = "true",
+            })
+            .Build();
+
+        var userManager = CreateUserManager();
+        userManager.Setup(x => x.FindByEmailAsync("new.user@example.com")).ReturnsAsync((ApplicationUser?)null);
+        ApplicationUser? created = null;
+        userManager
+            .Setup(x => x.CreateAsync(It.IsAny<ApplicationUser>(), "password123"))
+            .Callback<ApplicationUser, string>((u, _) => created = u)
+            .ReturnsAsync(IdentityResult.Success);
+        userManager.Setup(x => x.GenerateEmailConfirmationTokenAsync(It.IsAny<ApplicationUser>())).ReturnsAsync("confirm-token");
+
+        var tokenService = new Mock<ITokenService>();
+        tokenService.Setup(x => x.CreateAccessTokenAsync(It.IsAny<ApplicationUser>(), It.IsAny<CancellationToken>())).ReturnsAsync("app-token");
+
+        var emailSender = new Mock<IAppEmailSender>();
+
+        var controller = new AuthController(config, userManager.Object, tokenService.Object, emailSender.Object, Mock.Of<IGoogleTokenValidator>(), Mock.Of<IMicrosoftTokenValidator>(), NullLogger<AuthController>.Instance, Mock.Of<ITwoFactorPendingTokenService>(), TestHostFactory.CreateInMemoryDb())
+        {
+            ControllerContext = new ControllerContext { HttpContext = new DefaultHttpContext() }
+        };
+
+        var result = await controller.Register(new AuthController.RegisterRequest("new.user@example.com", "password123"), CancellationToken.None);
+
+        Assert.IsType<OkObjectResult>(result);
+        Assert.NotNull(created);
+        Assert.False(created!.EmailConfirmed);
+        emailSender.Verify(x => x.SendAsync("new.user@example.com", It.IsAny<string>(), It.Is<string>(b => b.Contains("verify-email")), It.IsAny<CancellationToken>()), Times.Once);
+    }
+
+    [Fact]
+    public async Task Register_is_unchanged_when_flag_off()
+    {
+        var config = new ConfigurationBuilder()
+            .AddInMemoryCollection(new Dictionary<string, string?> { ["Auth:AllowRegistration"] = "true" })
+            .Build();
+
+        var userManager = CreateUserManager();
+        userManager.Setup(x => x.FindByEmailAsync("new.user@example.com")).ReturnsAsync((ApplicationUser?)null);
+        ApplicationUser? created = null;
+        userManager
+            .Setup(x => x.CreateAsync(It.IsAny<ApplicationUser>(), "password123"))
+            .Callback<ApplicationUser, string>((u, _) => created = u)
+            .ReturnsAsync(IdentityResult.Success);
+
+        var tokenService = new Mock<ITokenService>();
+        tokenService.Setup(x => x.CreateAccessTokenAsync(It.IsAny<ApplicationUser>(), It.IsAny<CancellationToken>())).ReturnsAsync("app-token");
+
+        var emailSender = new Mock<IAppEmailSender>();
+
+        var controller = new AuthController(config, userManager.Object, tokenService.Object, emailSender.Object, Mock.Of<IGoogleTokenValidator>(), Mock.Of<IMicrosoftTokenValidator>(), NullLogger<AuthController>.Instance, Mock.Of<ITwoFactorPendingTokenService>(), TestHostFactory.CreateInMemoryDb())
+        {
+            ControllerContext = new ControllerContext { HttpContext = new DefaultHttpContext() }
+        };
+
+        var result = await controller.Register(new AuthController.RegisterRequest("new.user@example.com", "password123"), CancellationToken.None);
+
+        Assert.IsType<OkObjectResult>(result);
+        Assert.NotNull(created);
+        Assert.True(created!.EmailConfirmed);
+        emailSender.Verify(x => x.SendAsync(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>(), It.IsAny<CancellationToken>()), Times.Never);
+    }
+
+    [Fact]
+    public async Task Login_rejects_unconfirmed_local_account_when_flag_on()
+    {
+        var config = new ConfigurationBuilder()
+            .AddInMemoryCollection(new Dictionary<string, string?> { ["Auth:RequireEmailVerification"] = "true" })
+            .Build();
+
+        var user = new ApplicationUser { Id = "user-1", Email = "person@example.com", UserName = "person@example.com", EmailConfirmed = false };
+        var userManager = CreateUserManager();
+        userManager.Setup(x => x.FindByEmailAsync("person@example.com")).ReturnsAsync(user);
+        userManager.Setup(x => x.FindByNameAsync("person@example.com")).ReturnsAsync((ApplicationUser?)null);
+        userManager.Setup(x => x.IsLockedOutAsync(user)).ReturnsAsync(false);
+        userManager.Setup(x => x.CheckPasswordAsync(user, "correct-password")).ReturnsAsync(true);
+        userManager.Setup(x => x.ResetAccessFailedCountAsync(user)).ReturnsAsync(IdentityResult.Success);
+
+        var controller = new AuthController(config, userManager.Object, Mock.Of<ITokenService>(), Mock.Of<IAppEmailSender>(), Mock.Of<IGoogleTokenValidator>(), Mock.Of<IMicrosoftTokenValidator>(), NullLogger<AuthController>.Instance, Mock.Of<ITwoFactorPendingTokenService>(), TestHostFactory.CreateInMemoryDb())
+        {
+            ControllerContext = new ControllerContext { HttpContext = new DefaultHttpContext() }
+        };
+
+        var result = await controller.Login(new AuthController.LoginRequest("person@example.com", "correct-password"), CancellationToken.None);
+
+        var obj = Assert.IsType<ObjectResult>(result);
+        Assert.Equal(StatusCodes.Status403Forbidden, obj.StatusCode);
+    }
+
+    [Fact]
+    public async Task Login_allows_unconfirmed_local_account_when_flag_off()
+    {
+        var user = new ApplicationUser { Id = "user-1", Email = "person@example.com", UserName = "person@example.com", EmailConfirmed = false };
+        var userManager = CreateUserManager();
+        userManager.Setup(x => x.FindByEmailAsync("person@example.com")).ReturnsAsync(user);
+        userManager.Setup(x => x.FindByNameAsync("person@example.com")).ReturnsAsync((ApplicationUser?)null);
+        userManager.Setup(x => x.IsLockedOutAsync(user)).ReturnsAsync(false);
+        userManager.Setup(x => x.CheckPasswordAsync(user, "correct-password")).ReturnsAsync(true);
+        userManager.Setup(x => x.ResetAccessFailedCountAsync(user)).ReturnsAsync(IdentityResult.Success);
+
+        var tokenService = new Mock<ITokenService>();
+        tokenService.Setup(x => x.CreateAccessTokenAsync(user, It.IsAny<CancellationToken>())).ReturnsAsync("app-token");
+
+        var controller = new AuthController(BuildConfig(), userManager.Object, tokenService.Object, Mock.Of<IAppEmailSender>(), Mock.Of<IGoogleTokenValidator>(), Mock.Of<IMicrosoftTokenValidator>(), NullLogger<AuthController>.Instance, Mock.Of<ITwoFactorPendingTokenService>(), TestHostFactory.CreateInMemoryDb())
+        {
+            ControllerContext = new ControllerContext { HttpContext = new DefaultHttpContext() }
+        };
+
+        var result = await controller.Login(new AuthController.LoginRequest("person@example.com", "correct-password"), CancellationToken.None);
+
+        var ok = Assert.IsType<OkObjectResult>(result);
+        var session = Assert.IsType<AuthController.AuthSessionResult>(ok.Value);
+        Assert.True(session.Authenticated);
+    }
+
+    [Fact]
+    public async Task VerifyEmail_confirms_account_on_valid_token()
+    {
+        var user = new ApplicationUser { Id = "user-1", Email = "person@example.com", UserName = "person@example.com", EmailConfirmed = false };
+        var userManager = CreateUserManager();
+        userManager.Setup(x => x.FindByIdAsync("user-1")).ReturnsAsync(user);
+        userManager.Setup(x => x.ConfirmEmailAsync(user, "good-token")).ReturnsAsync(IdentityResult.Success);
+
+        var controller = new AuthController(BuildConfig(), userManager.Object, Mock.Of<ITokenService>(), Mock.Of<IAppEmailSender>(), Mock.Of<IGoogleTokenValidator>(), Mock.Of<IMicrosoftTokenValidator>(), NullLogger<AuthController>.Instance, Mock.Of<ITwoFactorPendingTokenService>(), TestHostFactory.CreateInMemoryDb());
+
+        var result = await controller.VerifyEmail(new AuthController.VerifyEmailRequest("user-1", "good-token"));
+
+        Assert.IsType<NoContentResult>(result);
+    }
+
+    [Fact]
+    public async Task ResendVerificationEmail_returns_identical_response_for_real_and_fake_accounts()
+    {
+        var user = new ApplicationUser { Id = "user-1", Email = "real@example.com", UserName = "real@example.com", EmailConfirmed = false };
+        var userManager = CreateUserManager();
+        userManager.Setup(x => x.FindByEmailAsync("real@example.com")).ReturnsAsync(user);
+        userManager.Setup(x => x.FindByEmailAsync("fake@example.com")).ReturnsAsync((ApplicationUser?)null);
+        userManager.Setup(x => x.HasPasswordAsync(user)).ReturnsAsync(true);
+        userManager.Setup(x => x.GenerateEmailConfirmationTokenAsync(user)).ReturnsAsync("confirm-token");
+
+        var emailSender = new Mock<IAppEmailSender>();
+
+        var controller = new AuthController(BuildConfig(), userManager.Object, Mock.Of<ITokenService>(), emailSender.Object, Mock.Of<IGoogleTokenValidator>(), Mock.Of<IMicrosoftTokenValidator>(), NullLogger<AuthController>.Instance, Mock.Of<ITwoFactorPendingTokenService>(), TestHostFactory.CreateInMemoryDb())
+        {
+            ControllerContext = new ControllerContext { HttpContext = new DefaultHttpContext() }
+        };
+
+        var realResult = await controller.ResendVerificationEmail(new AuthController.ResendVerificationEmailRequest("real@example.com"), CancellationToken.None);
+        var fakeResult = await controller.ResendVerificationEmail(new AuthController.ResendVerificationEmailRequest("fake@example.com"), CancellationToken.None);
+
+        Assert.IsType<NoContentResult>(realResult);
+        Assert.IsType<NoContentResult>(fakeResult);
+        emailSender.Verify(x => x.SendAsync("real@example.com", It.IsAny<string>(), It.IsAny<string>(), It.IsAny<CancellationToken>()), Times.Once);
+    }
+
+    [Fact]
+    public async Task Exchange_google_token_new_user_stays_EmailConfirmed_true_even_when_verification_flag_is_on()
+    {
+        var config = new ConfigurationBuilder()
+            .AddInMemoryCollection(new Dictionary<string, string?>
+            {
+                ["Auth:AllowRegistration"] = "true",
+                ["Auth:RequireEmailVerification"] = "true",
+            })
+            .Build();
+
+        var userManager = CreateUserManager();
+        userManager.Setup(x => x.Users).Returns(new TestAsyncEnumerable<ApplicationUser>(new List<ApplicationUser>()));
+        userManager.Setup(x => x.FindByEmailAsync("new.hire@example.com")).ReturnsAsync((ApplicationUser?)null);
+        ApplicationUser? created = null;
+        userManager
+            .Setup(x => x.CreateAsync(It.IsAny<ApplicationUser>()))
+            .Callback<ApplicationUser>(u => created = u)
+            .ReturnsAsync(IdentityResult.Success);
+
+        var tokenService = new Mock<ITokenService>();
+        tokenService.Setup(x => x.CreateAccessTokenAsync(It.IsAny<ApplicationUser>(), It.IsAny<CancellationToken>())).ReturnsAsync("app-token");
+
+        var googleValidator = new Mock<IGoogleTokenValidator>();
+        googleValidator
+            .Setup(x => x.ValidateAsync("google-token", It.IsAny<CancellationToken>()))
+            .ReturnsAsync(new GoogleTokenPrincipal("google-subject", "new.hire@example.com", true, "New", "Hire", "New Hire"));
+
+        var controller = new AuthController(config, userManager.Object, tokenService.Object, Mock.Of<IAppEmailSender>(), googleValidator.Object, Mock.Of<IMicrosoftTokenValidator>(), NullLogger<AuthController>.Instance, Mock.Of<ITwoFactorPendingTokenService>(), TestHostFactory.CreateInMemoryDb())
+        {
+            ControllerContext = new ControllerContext { HttpContext = new DefaultHttpContext() }
+        };
+
+        var result = await controller.ExchangeGoogleToken(new AuthController.GoogleTokenRequest("google-token"), CancellationToken.None);
+
+        Assert.IsType<OkObjectResult>(result);
+        Assert.NotNull(created);
+        Assert.True(created!.EmailConfirmed);
+    }
+
     private static JobTrackerContext BuildDb(string dbName, string? currentUserId)
     {
         var options = new DbContextOptionsBuilder<JobTrackerContext>().UseInMemoryDatabase(dbName).Options;

JobTrackerApi/Controllers/AuthController.cs

@@ -46,6 +46,7 @@ public sealed class AuthController : ControllerBase
         var googleEnabled = !string.IsNullOrWhiteSpace((_cfg["Auth:GoogleClientId"] ?? string.Empty).Trim());
         var microsoftEnabled = !string.IsNullOrWhiteSpace((_cfg["Auth:MicrosoftClientId"] ?? string.Empty).Trim());
         var allowRegistration = _cfg.GetValue("Auth:AllowRegistration", false);
+        var requireEmailVerification = _cfg.GetValue("Auth:RequireEmailVerification", false);
 
         return Ok(new
         {
@@ -54,6 +55,7 @@ public sealed class AuthController : ControllerBase
             microsoftEnabled,
             localEnabled = true,
             allowRegistration,
+            requireEmailVerification,
         });
     }
 
@@ -113,6 +115,14 @@ public sealed class AuthController : ControllerBase
 
         await _users.ResetAccessFailedCountAsync(user);
 
+        // Same enumeration-avoidance discipline as the password-check branch above: this only
+        // runs once the password is already confirmed correct, so it can never be used to probe
+        // whether an email is registered.
+        if (_cfg.GetValue("Auth:RequireEmailVerification", false) && !user.EmailConfirmed)
+        {
+            return StatusCode(StatusCodes.Status403Forbidden, new { error = "email_not_verified" });
+        }
+
         return await CompleteSignInAsync(user, request.RememberMe, "local", cancellationToken);
     }
 
@@ -133,13 +143,28 @@ public sealed class AuthController : ControllerBase
         var existing = await _users.FindByEmailAsync(email);
         if (existing is not null) return BadRequest("User already exists.");
 
-        var user = new ApplicationUser { UserName = email, Email = email, EmailConfirmed = true };
+        var requireEmailVerification = _cfg.GetValue("Auth:RequireEmailVerification", false);
+        var user = new ApplicationUser { UserName = email, Email = email, EmailConfirmed = !requireEmailVerification };
         var res = await _users.CreateAsync(user, password);
         if (!res.Succeeded)
         {
             return BadRequest(string.Join("; ", res.Errors.Select(e => e.Description)));
         }
 
+        if (requireEmailVerification)
+        {
+            try
+            {
+                await SendVerificationEmailAsync(user, cancellationToken);
+            }
+            catch (Exception ex)
+            {
+                // ponytail: don't fail registration over a flaky email send -- the account is
+                // created either way, the user can request a fresh link via resend-verification-email.
+                _logger.LogError(ex, "Failed to send verification email to {Email}", user.Email);
+            }
+        }
+
         return await CompleteSignInAsync(user, request.RememberMe, "local", cancellationToken);
     }
 
@@ -662,6 +687,82 @@ public sealed class AuthController : ControllerBase
         return NoContent();
     }
 
+    public sealed record VerifyEmailRequest(string UserId, string Token);
+
+    [HttpPost("verify-email")]
+    [AllowAnonymous]
+    [EnableRateLimiting("auth-email")]
+    public async Task<IActionResult> VerifyEmail([FromBody] VerifyEmailRequest request)
+    {
+        var userId = (request.UserId ?? string.Empty).Trim();
+        var token = request.Token ?? string.Empty;
+
+        if (userId.Length == 0) return BadRequest("UserId is required.");
+        if (token.Length == 0) return BadRequest("Token is required.");
+
+        var user = await _users.FindByIdAsync(userId);
+        if (user is null) return BadRequest("Invalid or expired link.");
+
+        var res = await _users.ConfirmEmailAsync(user, token);
+        if (!res.Succeeded)
+        {
+            return BadRequest("Invalid or expired link.");
+        }
+
+        return NoContent();
+    }
+
+    public sealed record ResendVerificationEmailRequest(string Email);
+
+    [HttpPost("resend-verification-email")]
+    [AllowAnonymous]
+    [EnableRateLimiting("auth-email")]
+    public async Task<IActionResult> ResendVerificationEmail([FromBody] ResendVerificationEmailRequest request, CancellationToken cancellationToken)
+    {
+        var email = (request.Email ?? string.Empty).Trim();
+        if (email.Length == 0) return NoContent();
+
+        // Mirrors request-password-reset's enumeration-avoidance: always NoContent, only actually
+        // send when there's a matching local account that still needs verifying.
+        var user = await _users.FindByEmailAsync(email);
+        if (user is null || user.EmailConfirmed || string.IsNullOrWhiteSpace(user.Email) || !await _users.HasPasswordAsync(user))
+        {
+            return NoContent();
+        }
+
+        try
+        {
+            await SendVerificationEmailAsync(user, cancellationToken);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Failed to send verification email to {Email}", user.Email);
+            return EmailDeliveryUnavailable("Verification email could not be sent right now. Please try again later.");
+        }
+
+        return NoContent();
+    }
+
+    private async Task SendVerificationEmailAsync(ApplicationUser user, CancellationToken cancellationToken)
+    {
+        var token = await _users.GenerateEmailConfirmationTokenAsync(user);
+
+        var baseUrl = (_cfg["App:PublicBaseUrl"] ?? string.Empty).Trim().TrimEnd('/');
+        if (string.IsNullOrWhiteSpace(baseUrl))
+        {
+            baseUrl = $"{Request.Scheme}://{Request.Host}";
+        }
+
+        var link = $"{baseUrl}/verify-email?userId={Uri.EscapeDataString(user.Id)}&token={Uri.EscapeDataString(token)}";
+
+        await _email.SendAsync(
+            user.Email!,
+            "Verify your email",
+            $"Welcome to Jobbjakt! Please verify your email address to finish setting up your account.\n\nVerification link:\n{link}\n\nIf you did not create this account, you can ignore this email.",
+            cancellationToken
+        );
+    }
+
     private IActionResult EmailDeliveryUnavailable(string detail)
     {
         return Problem(statusCode: StatusCodes.Status503ServiceUnavailable, title: "Email delivery unavailable", detail: detail);

JobTrackerApi/appsettings.Development.json

@@ -20,6 +20,7 @@
   "Auth": {
     "Require": true,
     "AllowRegistration": true,
+    "RequireEmailVerification": false,
     "JwtKey": "CHANGE_ME_DEV_ONLY_LONG_RANDOM_SECRET",
     "JwtIssuer": "JobTrackerApi",
     "JwtAudience": "job-tracker-ui",

job-tracker-ui/src/App.tsx

@@ -31,6 +31,7 @@ import LoginPage from "./views/LoginPage";
 import LandingPage from "./views/LandingPage";
 import ForgotPasswordPage from "./views/ForgotPasswordPage";
 import ResetPasswordPage from "./views/ResetPasswordPage";
+import VerifyEmailPage from "./views/VerifyEmailPage";
 import RouteErrorPage from "./views/RouteErrorPage";
 import { api } from "./api";
 import { resolveCaptureUrl } from "./captureUrl";
@@ -366,6 +367,7 @@ export default function App() {
     { path: "/login", element: <LoginPage />, errorElement: <RouteErrorPage /> },
     { path: "/forgot-password", element: <ForgotPasswordPage />, errorElement: <RouteErrorPage /> },
     { path: "/reset-password", element: <ResetPasswordPage />, errorElement: <RouteErrorPage /> },
+    { path: "/verify-email", element: <VerifyEmailPage />, errorElement: <RouteErrorPage /> },
     { path: "/*", element: <Shell jobPageSize={jobPageSize} setJobPageSize={setJobPageSize} jobColumns={jobColumns} setJobColumns={setJobColumns} themeMode={themeMode} onThemeModeChange={onThemeModeChange} />, errorElement: <RouteErrorPage /> },
   ], { future: { v7_relativeSplatPath: true } }), [jobColumns, jobPageSize, themeMode]);
 

job-tracker-ui/src/i18n/translations.ts

@@ -764,6 +764,15 @@ export const translations = {
     resetFailed: "Reset failed.",
     backToLogin: "Back to login",
     updatePassword: "Update password",
+    emailNotVerified: "Please verify your email address before signing in.",
+    resendVerificationEmail: "Resend verification email",
+    verificationEmailResent: "Verification email sent. Check your inbox.",
+    registerCheckEmailForVerification: "Check your email to verify your account.",
+    verifyEmailTitle: "Verify your email",
+    verifyEmailVerifying: "Verifying your email...",
+    verifyEmailSuccess: "Your email has been verified. You can now sign in.",
+    verifyEmailFailed: "This verification link is invalid or has expired.",
+    missingVerifyLinkInfo: "Missing user/token in link.",
     jobTableSearch: "Search",
     jobTableSearchPlaceholder: "Title, company, notes, messages",
     jobTableStatus: "Status",
@@ -1792,6 +1801,15 @@ export const translations = {
     resetFailed: "Tilbakestilling mislyktes.",
     backToLogin: "Tilbake til innlogging",
     updatePassword: "Oppdater passord",
+    emailNotVerified: "Vennligst bekreft e-postadressen din før du logger inn.",
+    resendVerificationEmail: "Send bekreftelses-e-post på nytt",
+    verificationEmailResent: "Bekreftelses-e-post sendt. Sjekk innboksen din.",
+    registerCheckEmailForVerification: "Sjekk e-posten din for å bekrefte kontoen.",
+    verifyEmailTitle: "Bekreft e-posten din",
+    verifyEmailVerifying: "Bekrefter e-posten din...",
+    verifyEmailSuccess: "E-posten din er bekreftet. Du kan nå logge inn.",
+    verifyEmailFailed: "Denne bekreftelseslenken er ugyldig eller har utløpt.",
+    missingVerifyLinkInfo: "Mangler bruker/token i lenken.",
     jobTableSearch: "Søk",
     jobTableSearchPlaceholder: "Tittel, selskap, notater, meldinger",
     jobTableStatus: "Status",

job-tracker-ui/src/login-page.test.tsx

@@ -137,4 +137,33 @@ describe('LoginPage', () => {
 
     expect(await screen.findByRole('alert')).toHaveTextContent('Too many attempts. Please wait a few minutes and try again.');
   });
+
+  it('offers a resend-verification action when login reports the account is not verified', async () => {
+    mockedApi.get.mockResolvedValueOnce({
+      data: { requireAuth: false, googleEnabled: false, microsoftEnabled: false, localEnabled: true, allowRegistration: false, requireEmailVerification: true },
+    } as any);
+    mockedApi.post.mockImplementation((url: string) => {
+      if (url === '/auth/login') {
+        return Promise.reject({ response: { status: 403, data: { error: 'email_not_verified' } } });
+      }
+      if (url === '/auth/resend-verification-email') {
+        return Promise.resolve({ data: {} } as any);
+      }
+      return Promise.resolve({ data: {} } as any);
+    });
+
+    renderLoginPage();
+    await screen.findByLabelText('Email');
+
+    await userEvent.type(screen.getByLabelText('Email'), 'unverified@example.com');
+    await userEvent.type(screen.getByLabelText('Current password'), 'hunter2');
+    await userEvent.click(screen.getByRole('button', { name: 'Sign in' }));
+
+    expect(await screen.findByText('Please verify your email address before signing in.')).toBeInTheDocument();
+
+    await userEvent.click(screen.getByRole('button', { name: 'Resend verification email' }));
+
+    await waitFor(() => expect(mockedApi.post).toHaveBeenCalledWith('/auth/resend-verification-email', { email: 'unverified@example.com' }));
+    await screen.findByText('Verification email sent. Check your inbox.');
+  });
 });

job-tracker-ui/src/verify-email-page.test.tsx

@@ -0,0 +1,58 @@
+import React from 'react';
+import '@testing-library/jest-dom';
+import { render, screen } from '@testing-library/react';
+import { MemoryRouter } from 'react-router-dom';
+
+import VerifyEmailPage from './views/VerifyEmailPage';
+import { I18nProvider } from './i18n/I18nProvider';
+import { api, getApiErrorMessage } from './api';
+
+const mockedApi = api as jest.Mocked<typeof api>;
+// CRA's jest config sets resetMocks: true, which wipes the initial implementation given to
+// jest.fn() in setupTests.ts before every test -- re-arm it here so error-derived text is testable.
+const mockedGetApiErrorMessage = getApiErrorMessage as jest.Mock;
+
+function renderVerifyEmailPage(search: string) {
+  window.history.pushState({}, '', `/verify-email${search}`);
+  return render(
+    <MemoryRouter initialEntries={[`/verify-email${search}`]} future={{ v7_startTransition: true, v7_relativeSplatPath: true }}>
+      <I18nProvider>
+        <VerifyEmailPage />
+      </I18nProvider>
+    </MemoryRouter>,
+  );
+}
+
+describe('VerifyEmailPage', () => {
+  beforeEach(() => {
+    mockedApi.post.mockReset();
+    mockedGetApiErrorMessage.mockImplementation((e: any, fallback?: string) => {
+      const data = e?.response?.data;
+      return typeof data === 'string' && data.trim() ? data.trim() : fallback;
+    });
+  });
+
+  it('confirms the account and shows success when the link is valid', async () => {
+    mockedApi.post.mockResolvedValueOnce({ data: {} } as any);
+
+    renderVerifyEmailPage('?userId=user-1&token=good-token');
+
+    expect(await screen.findByText('Your email has been verified. You can now sign in.')).toBeInTheDocument();
+    expect(mockedApi.post).toHaveBeenCalledWith('/auth/verify-email', { userId: 'user-1', token: 'good-token' });
+  });
+
+  it('shows an error when the link is invalid or expired', async () => {
+    mockedApi.post.mockRejectedValueOnce({ response: { status: 400, data: 'Invalid or expired link.' } });
+
+    renderVerifyEmailPage('?userId=user-1&token=bad-token');
+
+    expect(await screen.findByText('Invalid or expired link.')).toBeInTheDocument();
+  });
+
+  it('shows an error without calling the API when the link is missing userId/token', async () => {
+    renderVerifyEmailPage('');
+
+    expect(await screen.findByText('Missing user/token in link.')).toBeInTheDocument();
+    expect(mockedApi.post).not.toHaveBeenCalled();
+  });
+});

job-tracker-ui/src/views/LoginPage.tsx

@@ -1,6 +1,6 @@
 import React, { useEffect, useState } from "react";
 
-import { Box, Button, Checkbox, FormControlLabel, Paper, Tab, Tabs, TextField, Typography } from "@mui/material";
+import { Alert, Box, Button, Checkbox, FormControlLabel, Paper, Tab, Tabs, TextField, Typography } from "@mui/material";
 
 import { useLocation, useNavigate } from "react-router-dom";
 
@@ -18,6 +18,7 @@ type AuthConfig = {
   microsoftEnabled: boolean;
   localEnabled: boolean;
   allowRegistration: boolean;
+  requireEmailVerification: boolean;
 };
 
 export default function LoginPage() {
@@ -34,6 +35,9 @@ export default function LoginPage() {
   const [rememberMe, setRememberMe] = useState(() => getRememberMePref());
   const [loading, setLoading] = useState(false);
   const [pendingToken, setPendingToken] = useState<string | null>(null);
+  const [emailNotVerified, setEmailNotVerified] = useState(false);
+  const [resendingVerification, setResendingVerification] = useState(false);
+  const [verificationResent, setVerificationResent] = useState(false);
 
   const nextPath = (location?.state?.from as string | undefined) ?? "/dashboard";
 
@@ -53,6 +57,8 @@ export default function LoginPage() {
 
   async function submit(mode: "login" | "register") {
     setLoading(true);
+    setEmailNotVerified(false);
+    setVerificationResent(false);
     try {
       const url = mode === "register" ? "/auth/register" : "/auth/login";
       const res = await api.post<{ requiresTwoFactor?: boolean; pendingToken?: string }>(url, { email, password, rememberMe });
@@ -61,13 +67,33 @@ export default function LoginPage() {
         return;
       }
       await completeLogin();
+      if (mode === "register" && cfg?.requireEmailVerification) {
+        toast(t("registerCheckEmailForVerification"), "info");
+      }
     } catch (e: any) {
-      toast(getApiErrorMessage(e, t("loginFailed")), "error");
+      if (mode === "login" && e?.response?.data?.error === "email_not_verified") {
+        setEmailNotVerified(true);
+      } else {
+        toast(getApiErrorMessage(e, t("loginFailed")), "error");
+      }
     } finally {
       setLoading(false);
     }
   }
 
+  async function resendVerification() {
+    setResendingVerification(true);
+    try {
+      await api.post("/auth/resend-verification-email", { email });
+      setVerificationResent(true);
+      toast(t("verificationEmailResent"), "success");
+    } catch (e: any) {
+      toast(getApiErrorMessage(e, t("verifyEmailFailed")), "error");
+    } finally {
+      setResendingVerification(false);
+    }
+  }
+
   const allowReg = cfg?.allowRegistration ?? false;
 
   return (
@@ -106,6 +132,18 @@ export default function LoginPage() {
 
             {tab === 0 && (
               <Box component="form" onSubmit={(e) => { e.preventDefault(); void submit("login"); }} sx={{ display: "flex", flexDirection: "column", gap: 1.5 }}>
+                {cfg?.requireEmailVerification && emailNotVerified && (
+                  <Alert
+                    severity="warning"
+                    action={
+                      <Button color="inherit" size="small" disabled={resendingVerification || verificationResent} onClick={() => void resendVerification()}>
+                        {verificationResent ? t("verificationEmailResent") : t("resendVerificationEmail")}
+                      </Button>
+                    }
+                  >
+                    {t("emailNotVerified")}
+                  </Alert>
+                )}
                 <TextField label={t("profileEmail")} value={email} onChange={(e) => setEmail(e.target.value)} autoComplete="email" fullWidth />
                 <TextField label={t("profileCurrentPassword")} value={password} onChange={(e) => setPassword(e.target.value)} autoComplete={allowReg ? "new-password" : "current-password"} type="password" fullWidth />
 

job-tracker-ui/src/views/VerifyEmailPage.tsx

@@ -0,0 +1,75 @@
+import React, { useEffect, useState } from "react";
+
+import { Alert, Box, Button, CircularProgress, Paper, Typography } from "@mui/material";
+
+import { useNavigate } from "react-router-dom";
+
+import { api, getApiErrorMessage } from "../api";
+import { useI18n } from "../i18n/I18nProvider";
+
+type Status = "verifying" | "success" | "error";
+
+export default function VerifyEmailPage() {
+  const { t } = useI18n();
+  const navigate = useNavigate();
+
+  const [status, setStatus] = useState<Status>("verifying");
+  const [errorMessage, setErrorMessage] = useState<string | null>(null);
+
+  useEffect(() => {
+    const params = new URLSearchParams(window.location.search);
+    const userId = params.get("userId") || "";
+    const token = params.get("token") || "";
+
+    if (!userId || !token) {
+      setStatus("error");
+      setErrorMessage(t("missingVerifyLinkInfo"));
+      return;
+    }
+
+    api
+      .post("/auth/verify-email", { userId, token })
+      .then(() => setStatus("success"))
+      .catch((e: any) => {
+        setStatus("error");
+        setErrorMessage(getApiErrorMessage(e, t("verifyEmailFailed")));
+      });
+  }, [t]);
+
+  return (
+    <Box
+      sx={{
+        minHeight: "100vh",
+        display: "flex",
+        alignItems: "center",
+        justifyContent: "center",
+        p: 2,
+        background:
+          "radial-gradient(1200px 700px at 20% 0%, rgba(79,140,255,0.14), transparent 55%), radial-gradient(900px 600px at 80% 20%, rgba(245,158,11,0.10), transparent 55%)",
+      }}
+    >
+      <Paper sx={{ width: "min(520px, 100%)", p: 3 }}>
+        <Typography variant="h5" sx={{ fontWeight: 900, mb: 0.5 }}>
+          {t("verifyEmailTitle")}
+        </Typography>
+
+        <Box sx={{ display: "flex", flexDirection: "column", gap: 1.5, mt: 2 }}>
+          {status === "verifying" && (
+            <Box sx={{ display: "flex", alignItems: "center", gap: 1.5 }}>
+              <CircularProgress size={20} />
+              <Typography sx={{ color: "text.secondary" }}>{t("verifyEmailVerifying")}</Typography>
+            </Box>
+          )}
+          {status === "success" && <Alert severity="success">{t("verifyEmailSuccess")}</Alert>}
+          {status === "error" && <Alert severity="error">{errorMessage}</Alert>}
+
+          <Box sx={{ display: "flex", justifyContent: "flex-end", mt: 1 }}>
+            <Button variant="contained" onClick={() => navigate("/login")}>
+              {t("backToLogin")}
+            </Button>
+          </Box>
+        </Box>
+      </Paper>
+    </Box>
+  );
+}