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Thread: if external DNS fails: internal mailing still possible?

  1. #1
    john99 is offline Advanced Member
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    Oct 2005
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    Default if external DNS fails: internal mailing still possible?


    can inhouse ZSC-users still mail themselves, if in an environment with
    an external DNS-Server (DynDNS), DomainNameServices fails?

    Thank's for your feedback!


  2. #2
    phoenix is offline Zimbra Consultant & Moderator
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    Sep 2005
    Vannes, France
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    No, you need a DNS server with A & MX records so postfix can find the server - without it mail delivery will fail. If you have your server behind a NAT router or firewall you will need a local DNS server.


    Acompli: A new adventure for Co-Founder KevinH.

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