Log email notification subject and body for all SendEmailNotificationHandler executions (#5139)

* remove duplicate custom check - Audit Message Ingestion

* add email notification subject and body to log

* apply code review suggestions

Author: soujay

src/ServiceControl/Notifications/Email/CustomChecksMailNotification.cs

@@ -25,7 +25,6 @@ class CustomChecksMailNotification : IDomainHandler<CustomCheckFailed>, IDomainH
             "ServiceControl database",
             "ServiceControl Remotes",
             "Error Message Ingestion Process",
-            "Audit Message Ingestion",
             "Error Message Ingestion"
         };
 

src/ServiceControl/Notifications/Email/SendEmailNotificationHandler.cs

@@ -32,9 +32,11 @@ public async Task Handle(SendEmailNotification message, IMessageHandlerContext c
                 notifications = await manager.LoadSettings(cacheTimeout);
             }
 
+            logger.LogInformation("Processing email notification. Subject: {Subject}, Body: {Body}", message.Subject, message.Body);
+
             if (notifications == null || !notifications.Email.Enabled)
             {
-                logger.LogInformation("Skipping email sending. Notifications turned-off");
+                logger.LogDebug("Skipping email sending. Notifications turned-off");
                 return;
             }
 
@@ -57,8 +59,7 @@ public async Task Handle(SendEmailNotification message, IMessageHandlerContext c
 
                 if (context.MessageId == throttlingState.RetriedMessageId)
                 {
-                    message.Body +=
-                        "\n\nWARNING: Your SMTP server was temporarily unavailable. Make sure to check ServicePulse for a full list of health check notifications.";
+                    message.Body += "\n\nWARNING: Your SMTP server was temporarily unavailable. Make sure to check ServicePulse for a full list of health check notifications.";
                 }
 
                 await emailSender.Send(notifications.Email, message.Subject, message.Body, emailDropFolder);