Results 1 to 2 of 2

Thread: Need help determining Postfix address range

  1. #1
    Join Date
    Jan 2013

    Need help determining Postfix address range

    Hello all,

    Recently set up a Ubuntu LTS 12.04 box to act as a web and mail server.

    I'm having some difficulty figuring out what to set in the Postfix configuration for the "Local Networks" setting using:

    sudo dpkg-reconfigure postfix
    - I have 5 static IP Addresses from my provider. thru
    - The mail server FQDN is set to and the IP address is
    - under the Local Networks setting, I have the default of and then I'm not sure what to use next for the ??? portion of

    Ideally, i would like it to just cover that single ip address. Should I then use ?

    Thanks in advance

  2. #2
    Join Date
    Feb 2011
    Coquitlam, B.C. Canada
    Ubuntu 12.04 Precise Pangolin

    Re: Need help determining Postfix address range

    If you do not have a local area network, then I do not think you have to worry about it.
    My server is also a router to my lan, so my line in the file is:
    mynetworks = [::ffff:]/104 [::1]/128
    where is my lan. In your case, if your server has no LAN on it, you would not want that part of the line.


Posting Permissions

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