diff --git a/Lombiq.Hosting.Tenants.EmailQuotaManagement.Tests.UI/Extensions/EmailQuotaManagementExtensions.cs b/Lombiq.Hosting.Tenants.EmailQuotaManagement.Tests.UI/Extensions/EmailQuotaManagementExtensions.cs
index 4d2e4915..8087a753 100644
--- a/Lombiq.Hosting.Tenants.EmailQuotaManagement.Tests.UI/Extensions/EmailQuotaManagementExtensions.cs
+++ b/Lombiq.Hosting.Tenants.EmailQuotaManagement.Tests.UI/Extensions/EmailQuotaManagementExtensions.cs
@@ -7,8 +7,7 @@ public static class EmailQuotaManagementExtensions
 {
     public static void SetEmailQuotaManagementOptionsForUITest(
         this OrchardCoreUITestExecutorConfiguration configuration,
-        long maximumEmails,
-        string emailHost = "localhost")
+        long maximumEmails)
     {
         configuration.OrchardCoreConfiguration.BeforeAppStart +=
             (_, argumentsBuilder) =>
@@ -18,11 +17,6 @@ public static void SetEmailQuotaManagementOptionsForUITest(
                         "OrchardCore:Lombiq_Hosting_Tenants_EmailQuotaManagement:EmailQuotaPerMonth",
                         maximumEmails);
 
-                argumentsBuilder
-                    .AddWithValue(
-                        "OrchardCore:SmtpSettings:Host",
-                        emailHost);
-
                 return Task.CompletedTask;
             };
 
diff --git a/Lombiq.Hosting.Tenants.EmailQuotaManagement.Tests.UI/Extensions/TestCaseUITestContextExtensions.cs b/Lombiq.Hosting.Tenants.EmailQuotaManagement.Tests.UI/Extensions/TestCaseUITestContextExtensions.cs
index 30ee233a..7de7b86b 100644
--- a/Lombiq.Hosting.Tenants.EmailQuotaManagement.Tests.UI/Extensions/TestCaseUITestContextExtensions.cs
+++ b/Lombiq.Hosting.Tenants.EmailQuotaManagement.Tests.UI/Extensions/TestCaseUITestContextExtensions.cs
@@ -26,7 +26,7 @@ public static async Task TestEmailQuotaManagementBehaviorAsync(
         await context.SignInDirectlyAndGoToDashboardAsync();
         context.Missing(By.XPath(DashboardExceededMessage));
 
-        await context.ConfigureSmtpPortAsync(publish: false);
+        await context.GoToEmailSettingsAsync();
         CheckEmailsSentWarningMessage(context, exists: moduleShouldInterfere, maximumEmailQuota, 0);
         await context.ClickReliablyOnAsync(By.ClassName("save"));
 
diff --git a/Lombiq.Hosting.Tenants.EmailQuotaManagement/Services/EmailQuotaService.cs b/Lombiq.Hosting.Tenants.EmailQuotaManagement/Services/EmailQuotaService.cs
index dc45845a..37f436fd 100644
--- a/Lombiq.Hosting.Tenants.EmailQuotaManagement/Services/EmailQuotaService.cs
+++ b/Lombiq.Hosting.Tenants.EmailQuotaManagement/Services/EmailQuotaService.cs
@@ -1,9 +1,7 @@
 using Lombiq.Hosting.Tenants.EmailQuotaManagement.Models;
 using Microsoft.AspNetCore.Identity;
-using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.Options;
 using OrchardCore.Email;
-using OrchardCore.Environment.Shell.Configuration;
 using OrchardCore.Modules;
 using OrchardCore.Security;
 using OrchardCore.Security.Services;
@@ -25,8 +23,8 @@ public class EmailQuotaService : IEmailQuotaService
 {
     private readonly ISession _session;
     private readonly EmailQuotaOptions _emailQuotaOptions;
-    private readonly IShellConfiguration _shellConfiguration;
-    private readonly SmtpSettings _smtpOptions;
+    private readonly DefaultSmtpOptions _defaultSmtpOptions;
+    private readonly SmtpOptions _smtpOptions;
     private readonly IClock _clock;
     private readonly IRoleService _roleService;
     private readonly UserManager<IUser> _userManager;
@@ -34,15 +32,15 @@ public class EmailQuotaService : IEmailQuotaService
     public EmailQuotaService(
         ISession session,
         IOptions<EmailQuotaOptions> emailQuotaOptions,
-        IShellConfiguration shellConfiguration,
-        IOptions<SmtpSettings> smtpOptions,
+        IOptions<DefaultSmtpOptions> defaultSmtpOptions,
+        IOptions<SmtpOptions> smtpOptions,
         IClock clock,
         IRoleService roleService,
         UserManager<IUser> userManager)
     {
         _session = session;
         _emailQuotaOptions = emailQuotaOptions.Value;
-        _shellConfiguration = shellConfiguration;
+        _defaultSmtpOptions = defaultSmtpOptions.Value;
         _smtpOptions = smtpOptions.Value;
         _clock = clock;
         _roleService = roleService;
@@ -66,11 +64,8 @@ public async Task<IEnumerable<string>> GetUserEmailsForEmailReminderAsync()
         return siteOwners.Select(user => (user as User)?.Email);
     }
 
-    public bool ShouldLimitEmails()
-    {
-        var originalHost = _shellConfiguration.GetValue<string>("SmtpSettings:Host");
-        return originalHost == _smtpOptions.Host;
-    }
+    public bool ShouldLimitEmails() =>
+        _defaultSmtpOptions.Host == _smtpOptions.Host || (_defaultSmtpOptions.Host != null && _smtpOptions.Host == null);
 
     public async Task<QuotaResult> IsQuotaOverTheLimitAsync()
     {