Stop Delivery Status Notification (Failure) Messages

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IIS

SMTP

Hi, Guys

I am using IIS8 for my websites and IIS6 for the SMTP on my windows server 2010.

I have a service which sends emails to the list of users notifications about the website.

Those emails have my client email address as from address,

So now the problem is , what ever the emails failed to deliver by IIS my client gets a Delivery Status Notification (Failure) Messages, And they are so upset about it that their inbox is full of Delivery Status Notification (Failure) Messages.

How can i stop IIS or SMTp from sending these Delivery Status Notification (Failure) Messages or atleast to defer it or to divert it to other than from address.

This is driving me crazy, Please help.


Thank you ..