SMTP could not connect to any DNS server - Event ID 2013

Discussion in 'Windows Small Business Server' started by Joe, Mar 13, 2007.

  1. Joe

    Joe Guest

    Today one of my SBS2003 customers email stopped going out. I suspected the
    exchange DST patch that took effect last night was a likely cause. Event logs
    indicated a SMTP DNS problem. We ocasionally have problems with our providers
    DNS server so I ran the CEICW and changed the DNS server to an alternate DNS
    servers but that did not fix it.

    As it turns out the Virtual SMTP server had three direct entries left over
    from an old location where the server started its life almost 4 years ago as
    SBS 2000.

    In ServerManagement - Advanced management - administrative groups/first
    administrative group/servers/servername/protocols/SMTP/default virtual server
    - properties. Deliver tab, Advanced button, Configure external DNS servers I
    foundre three entries.

    These enties were overriding the server DNS settings. As it turns out these
    were old bellsouth DNS servers that went offline today. Talk about

    For now I set these entries to the correct DNS servers and immediately the
    email started flowing. I have since looked at my other installations and this
    field was blank. I would conclude that this area sould be blank unless there
    is an complelling reason to override the server DNS setting.

    Hope this helps someone. Maybe everyone else knows about this entry. I know
    I won't forget it!!
    Joe, Mar 13, 2007
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  2. Joe
    thank you very much for sharing excellent information. this is what this
    community is built on.

    and in your specific case, one of those reasons we really don't like inplace
    Cris Hanna [SBS-MVP], Mar 13, 2007
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  3. Joe

    SJ Guest

    Sorry to bother everyone, we are having a very simular issue, but no DNS
    servers are listed there. Should I add the correct DNS server to test? We
    are having a terrible time with VERY slow email (and most won't leave). I
    can't seem to get my hands on this.

    Thanks a MILLION.

    SJ, Mar 14, 2007
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