How to change message format on Mail Message delivery Option

Question

I am Using SMTP server to send mails in my application.

When the mail delivery fail or success return a message to mail id using DeliveryNotificationOptions.OnSuccess It works fine but

Is it possible to set a custom message temple to send On success or Failure?

I recieved message like

Delivery has failed to these recipients or groups:

[email protected]
A problem occurred and this message couldn't be delivered. Check to be sure the e-mail address is correct. If the problem continues, please contact your helpdesk.

Diagnostic information for administrators:

Generating server: SMTP HOST

[email protected]

#554 5.4.4 SMTPSEND.DNS.NonExistentDomain; nonexistent domain ##

Original message headers:

Instead of above message is it possible to set my message?

Sumit Joshi · Answer

Hi f there is a delivery failure after acceptance of a message the receiver-SMTP MUST formulate and mail a notification message. This notification MUST be sent using a null ( ) reverse path in the envelope. The recipient of this notification MUST be the address from the envelope return path (or the Return-Path: line).