Achal tomar: > Thanks for telling me about the RFC,but i want to know what configuration > changes i have to do in postfix to achieve my goal.
Wietse Venema: > As per the RFC, Postfix prepends Return-Path: only > when it performs final delivery. Achal tomar: > ok so how can i change he return path address dynamically for each user when > he/she sends a mail,so that he return path includes his/her user ID and also You specify the envelope address when submitting mail. For example with the PHP mail() function you specify the envelope sender with the "additional parameters". mail('recei...@example.com', 'the subject', 'the message', null, '-fsen...@example.com'); http://us2.php.net/manual/en/function.mail.php Wietse