Results 1 to 2 of 2

Thread: Restrict incoming domains

  1. #1
    Join Date
    Oct 2008
    Rep Power

    Default Restrict incoming domains


    I've searched the forums and wiki for an answer to my question and couldn't find any. I'll appreciate any feedback.

    I would like to restrict the sender domain name.
    i.e, if my domain is, I would like only
    messages coming from "MTA Trusted Networks" or Authenticated users to be able to be from, and no one else.

    Today the situation is that spammers send messages to my users at as forged address coming from

    Thanks in advance,

  2. #2
    Join Date
    Jul 2007
    Rep Power


    A better solution for you (and everyone on the internet) is to use spf records.

    spf records are domain records yo uadd to your dns zone that basically say "e-mail from this domain will only come from the following servers:"

    Then, your e-mail server and every other e-mail server on the internet that reads spf records can tell if an e-mail with your domain is spoofed or not.

    Theres information about adding spf checking to zimbra's spamassassin here

Similar Threads

  1. Advanced MTA Configuration - multiple domains
    By keyhman in forum Installation
    Replies: 6
    Last Post: 04-20-2012, 02:23 AM
  2. Replies: 3
    Last Post: 05-29-2009, 03:59 PM
  3. Restrict users to send and receive from/to certain domains
    By cyrofilho in forum Administrators
    Replies: 1
    Last Post: 06-12-2008, 09:38 PM
  4. Accept incoming mails only for certain domains
    By gluon in forum Administrators
    Replies: 6
    Last Post: 11-23-2006, 05:14 AM
  5. Restrict email account to zimbra domain(s)
    By sperkins in forum Administrators
    Replies: 3
    Last Post: 09-05-2006, 09:35 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts