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I'm desperately trying to get Postfix to 'rewrite' the MAIL FROM envelope so that it's always in the form of: authenticated-user@$mydomain

I've been playing with the smtpd_sender_login_maps and smtpd_sender_restrictions options but these don't seem to provide anyway of forcing a certain value, merely accepting or rejecting the given value.

How can achieve this?


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1 Answer 1

You probably want to use the generic maps feature. Take a look at:



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