only allow notification if smtp server is setup.

External/Implementations/UserConfigDataAccess.cs

@@ -32,7 +32,8 @@ namespace CarCareTracker.External.Implementations
             using (var db = new LiteDatabase(dbName))
             {
                 var table = db.GetCollection<UserConfigData>(tableName);
-                return table.Delete(userId);
+                table.Delete(userId);
+                return true;
             };
         }
     }

Helper/MailHelper.cs

@@ -20,6 +20,10 @@ namespace CarCareTracker.Helper
         }
         public OperationResponse NotifyUserForRegistration(string emailAddress, string token)
         {
+            if (string.IsNullOrWhiteSpace(mailConfig.EmailServer))
+            {
+                return new OperationResponse { Success = false, Message = "SMTP Server Not Setup" };
+            }
             if (string.IsNullOrWhiteSpace(emailAddress) || string.IsNullOrWhiteSpace(token)) {
                 return new OperationResponse { Success = false, Message = "Email Address or Token is invalid" };
             }
@@ -36,6 +40,10 @@ namespace CarCareTracker.Helper
         }
         public OperationResponse NotifyUserForPasswordReset(string emailAddress, string token)
         {
+            if (string.IsNullOrWhiteSpace(mailConfig.EmailServer))
+            {
+                return new OperationResponse { Success = false, Message = "SMTP Server Not Setup" };
+            }
             if (string.IsNullOrWhiteSpace(emailAddress) || string.IsNullOrWhiteSpace(token))
             {
                 return new OperationResponse { Success = false, Message = "Email Address or Token is invalid" };

Views/Admin/Index.cshtml

@@ -1,6 +1,15 @@
 @{
     ViewData["Title"] = "Admin";
 }
+@inject IConfiguration config;
+@{
+    bool emailServerIsSetup = true;
+    var mailConfig = config.GetSection("MailConfig").Get<MailConfig>();
+    if (mailConfig is null || string.IsNullOrWhiteSpace(mailConfig.EmailServer))
+    {
+        emailServerIsSetup = false;
+    }
+}
 @model AdminViewModel
 <div class="container">
     <div class="row">
@@ -22,7 +31,7 @@
                 </div>
                 <div class="col-6 d-flex align-items-center">
                     <div class="form-check form-switch">
-                        <input class="form-check-input" type="checkbox" role="switch" id="enableAutoNotify" checked>
+                        <input class="form-check-input" type="checkbox" role="switch" id="enableAutoNotify" @(emailServerIsSetup ? "checked" : "disabled")>
                         <label class="form-check-label" for="enableAutoNotify">Auto Notify(via Email)</label>
                     </div>
                 </div>