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3
votes
2answers
2k views

How to enforce sender address to be “logged-in-user@example.org” in Postfix?

I have set up a Postfix server with SMTP AUTH (STARTTLS on port 587). All my users are in the domain "example.org". I want to enforce the sender address to be "logged-in-user@example.org". I learned ...
2
votes
1answer
5k views

Postfix + SASL = “Relay Access Denied” when sending from outside the network

I have in /etc/postfix/main.cf: smtpd_sasl_auth_enable = yes smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination and SASL seems to be working: $ ...
1
vote
3answers
3k views

Spamhaus PBL stops email even though SMTP-AUTH is enabled

My emails to D-Link get bounced due to my Comcast IP being on the Spamhaus PBL. Spamhaus says there's no way to get removed from the list and the only way to bypass this filter is to enable ...