Results 1 to 5 of 5

Thread: postfix & unknown

  1. #1
    Join Date
    Jun 2014
    Location
    Helsinki
    Posts
    3
    Rep Power
    1

    Question postfix & unknown

    I know this question has been asked before but I would like a clear answer (for Zimbra 8) please.

    How can we modify postfix config so that no "unknown" senders would get trough? By "unknown" I mean this...

    Received: from 88.234.80.209.dynamic.ttnet.com.tr (unknown [88.234.80.209])

  2. #2
    Join Date
    May 2007
    Location
    Zimbra
    Posts
    1,285
    Rep Power
    10

    Default

    You want to disable receiving email from external sites? I suppose you could, but that means you won't get much email.
    Quanah Gibson-Mount
    Server Architect
    Zimbra, Inc
    --------------------
    Zimbra :: the leader in open source messaging and collaboration

  3. #3
    Join Date
    Jun 2014
    Location
    Helsinki
    Posts
    3
    Rep Power
    1

    Talking

    Quote Originally Posted by quanah View Post
    You want to disable receiving email from external sites? I suppose you could, but that means you won't get much email.
    LOL.

    We don't want to do that. We want to block all Unknow servers.
    Servers that don't have a proper DNS/reverse address.

  4. #4
    Join Date
    May 2007
    Location
    Zimbra
    Posts
    1,285
    Rep Power
    10

    Default

    There are numerous options you can use in ZCS8 for having postfix block a variety of failures:

    Code:
    reject_invalid_helo_hostname
    reject_non_fqdn_helo_hostname
    reject_non_fqdn_sender
    reject_unknown_client_hostname
    reject_unknown_reverse_client_hostname
    reject_unknown_helo_hostname
    reject_unknown_sender_domain
    Just set it as desired using zmprov.
    Quanah Gibson-Mount
    Server Architect
    Zimbra, Inc
    --------------------
    Zimbra :: the leader in open source messaging and collaboration

  5. #5
    Join Date
    Jun 2014
    Location
    Helsinki
    Posts
    3
    Rep Power
    1

    Default

    Thx 4 the tip. Do these come under smtpd_sender_restrictions = ?

Similar Threads

  1. Replies: 1
    Last Post: 04-01-2014, 10:35 PM
  2. Replies: 8
    Last Post: 10-01-2012, 05:40 AM
  3. Replies: 1
    Last Post: 10-18-2009, 11:34 PM
  4. Replies: 10
    Last Post: 08-24-2009, 02:14 AM
  5. Replies: 6
    Last Post: 12-05-2006, 12:54 PM

Tags for this Thread

Posting Permissions

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