I am using postfix + dovecot(imap+pop3) + mysql I whant to explicity define users or groups that can send email on behalf of others I was thinking doing this way: for all local(mysql) authenticated users filter outgoing mail: filter all mail by headers Return-Path/X-Original-To/From: field must matche authenticated user that sends it, otherwise bounce the email

Any ideas how to do this?


You can use smtpd_sender_login_maps and reject_authenticated_sender_login_mismatch in smtpd_sender_restrictions to restrict which MAIL FROM addresses logged in users can use. For example:


smtpd_sender_login_maps = hash:/etc/postfix/sender_login_maps
smtpd_sender_restrictions = reject_authenticated_sender_login_mismatch


alice@example.com       alice
bob@example.com         bob
charlie@example.com     charlie
marketing@example.com   alice,charlie

Don't forget to run postmap:

# postmap /etc/postfix/sender_login_maps

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.