Home / server / Questions / 705841
In Process
Joachim Breitner
Asked: 2015-07-16 00:15:26 +0800 CST

exim: How to reject spam mail depending on destination domain

  • 772

Currently, I have exim set up to mark spam mail, and reject spam mail with high scores, using these ACL instructions in the acl_smtp_data ACL:

  warn  condition = ${if <{$message_size}{500000}{1}{0}}
        spam = nobody
        add_header = X-Spam-Status: Yes
  deny  condition = ${if <{$message_size}{500000}{1}{0}}
        condition = ${if >{$spam_score_int}{80}{1}{0}}
        spam = nobody:true
        message = This message scored $spam_score spam points.

I’d like to be more aggressive for mails that are destined to certain addresses, e.g. all to @lists.example.com, and deny all spam mails to such addresses. Unfortunately, the domain acl condition is not available in acl_smtp_data. What is the suggested work-around for this?

(I would not mind imposing the more strict behaviour also on messages with multiple recipients, where at least one of them is a lists address.)

email-server

1 Answers

  1. You can set an ACL variable in acl_check_rcpt, e.g.

    warn
    set acl_m0 = ${domain}
    logwrite = recipient domain = ${domain}

    And then you can use $acl_m0 in acl_check_data.

    • 2