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Thread: [SOLVED] Force AUTH SMTP For Local/External Networks

  1. #1
    the_griz is offline Loyal Member
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    Default [SOLVED] Force AUTH SMTP For Local/External Networks

    Zimbra Version: Release 5.0.9_GA_2533.RHEL5_64_20080815094512 RHEL5_64 FOSS edition

    I would like to force all users who use SMTP on my Zimbra box to use AUTH SMTP. Zimbra by default, relays email without SMTP, for the local network.

    How do I configure this?

    I have tried:
    Try 1:
    zmprov modifyServer <myserver.mydomain.com> zimbraMtaMyNetworks '127.0.0.0/8'
    postfix reload

    With AUTH SMTP enabled on the server and at the client, I get a "Relaying Denied" message back.

    Try 2:
    I also tried enabling this in postfix's master.cf
    submission inet n - n - - smtpd
    -o smtpd_etrn_restrictions=reject
    -o smtpd_client_restrictions=permit_sasl_authenticate d,reject

    No effect.

    Thanks for any help!

  2. #2
    the_griz is offline Loyal Member
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    Default Problem Resolved: Force AUTH SMTP for LAN/WAN

    Once again I did:
    zmprov modifyServer <myserver.mydomain.com> zimbraMtaMyNetworks '127.0.0.0/8'
    postfix reload

    The "Relaying Denied" error I was getting was not related to source address of my email client, but WAS related to the fact I had "Enable authentication" and "TLS authentication only" checked. I needed to have my email client use SSL on SMTP connections and then the behavior of the Zimbra MTA was consistent with what I was looking for.

    I hope this helps others.

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