Hi,<BR><BR>I am sending emails with from address emailabc. But I want to change the return address to emailxyz. So I tried adding header MailMessage.Headers.Add("Return-Path", "emailxyz"); But I am not receiving emails at emailxyz. I tried replacing Retun-Path with Reply-To, Errors-To but it is not working. Can any one tell me why? I am using IMail server.<BR><BR>Thanks.