Home / server / Questions / 239560
Accepted
Deeksy
Asked: 2011-02-24 20:44:47 +0800 CST

Blacklisting Specific From and To with Postfix

  • 772

I have a scenario where I need to blacklist emails from one email to one of our local emails. Is blocking this specific scenario possible in postfix?

For example, emails from [email protected] to [email protected] should be black listed, but not other emails coming from [email protected].

postfix email-server blacklist

1 Answers

  1. Best Answer

    You could use restriction classes. See:

    For example:

    /etc/postfix/main.cf:
    smtpd_recipient_restrictions =
        check_recipient_access hash:/etc/postfix/protected_destinations
        ...
    smtpd_restriction_classes = bad_senders1
    bad_senders1 = check_sender_access hash:/etc/postfix/bad_senders1

/etc/postfix/bad_senders1:
    [email protected]   REJECT   You are not welcome here.
    ...

/etc/postfix/protected_destinations:
    [email protected]    bad_senders1
    ...

    Now emails with an envelope sender address in the "bad_senders1" restriction class will get rejected, but only if it was sent to an address in the "protected_destinations" list that has the "bad_senders1" restriction class specified on the right-hand side.

    Remember to run postmap for the newly created files.

    • 6