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

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

    Hello,

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


    Thank's for your feedback!

    John

  2. #2
    phoenix is online now Zimbra Consultant & Moderator
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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.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

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