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Thread: allow relaying for an ip..

  1. #1
    Join Date
    May 2007
    Rep Power

    Default allow relaying for an ip..

    I want to allow relaying for a specific internal ip... x.x.x.0/24 is my mta trusted network entry...

    is the /24 for the ip range?
    the ip I want to relay is x.x.x.125

    how can I get this to go through?

  2. #2
    Join Date
    May 2006
    Rep Power


    Recommendation: Use slash /32 on the IP you wish to allow incoming submission/relaying from.
    zmprov modifyServer zimbraMtaMyNetworks ' x.x.x.0/24 x.x.x.125/32'
    postfix reload
    (Might check the attribute first for other current values so you don't accidentally remove them.)

    Explanation: If that IP doesn't fall within your interfaces x.x.x.0/24 net, and it's one trusted, unchanging IP - then adding just x.x.x.125/32 to the list would be more appropriate than opening it up for 255 other machines as well. Even though their on your internal net, who knows if they could become compromised; if there's no reason for them to ever relay mail, no sense exposing yourself.

    ZimbraMtaMyNetworks - Zimbra :: Wiki
    IPv4 subnetting reference - Wikipedia
    Last edited by mmorse; 07-22-2009 at 10:49 AM.

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