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Connection lost to smtp server

SalishSwede
I have Astaro 8.30o running on a Vmware ESXi 4.x hypervisor.
I have a mail server running on another VM: Zimbra.

When sending mail from my cell phone I get a strange connection lost with associated errors on the client.

2012:02:28-12:41:28 wahine exim-in[12076]: 2012-02-28 12:41:28 SMTP connection from [107.63.xx.yy]:34866 (TCP/IP connection count = 1)
2012:02:28-12:41:28 wahine exim-in[17467]: 2012-02-28 12:41:28 SMTP connection from [107.63.xx.yy]:34866 lost
2012:02:28-12:41:28 wahine exim-in[12076]: 2012-02-28 12:41:28 SMTP connection from [107.63.xx.yy]:35189 (TCP/IP connection count = 1)
2012:02:28-12:41:29 wahine exim-in[17468]: 2012-02-28 12:41:29 SMTP connection from [107.63.xx.yy]:35189 lost
2012:02:28-12:41:29 wahine exim-in[12076]: 2012-02-28 12:41:29 SMTP connection from [107.63.xx.yy]:40898 (TCP/IP connection count = 1)
2012:02:28-12:41:29 wahine exim-in[17469]: 2012-02-28 12:41:29 SMTP connection from [107.63.xx.yy]:40898 lost
2012:02:28-12:41:41 wahine exim-in[12076]: 2012-02-28 12:41:41 SMTP connection from [107.63.xx.yy]:35720 (TCP/IP connection count = 1)
2012:02:28-12:41:41 wahine exim-in[17472]: 2012-02-28 12:41:41 SMTP connection from [107.63.xx.yy]:35720 lost
2012:02:28-12:41:41 wahine exim-in[12076]: 2012-02-28 12:41:41 SMTP connection from [107.63.xx.yy]:43486 (TCP/IP connection count = 1)
2012:02:28-12:41:42 wahine exim-in[17473]: 2012-02-28 12:41:42 SMTP connection from [107.63.xx.yy]:43486 lost
2012:02:28-12:41:42 wahine exim-in[12076]: 2012-02-28 12:41:42 SMTP connection from [107.63.xx.yy]:59239 (TCP/IP connection count = 1)
2012:02:28-12:41:42 wahine exim-in[17474]: 2012-02-28 12:41:42 SMTP connection from [107.63.xx.yy]:59239 lost 

I see nothing from the firewall logs.
Connections work fine from a local [inside the firewall] network.
HTML interface to the server works fine.  [not a serious part of the troubleshooting]

I have the Zimbra vm lised in the host list under Mail Security \ SMTP section,
and I have Authenticated Relaying allowed.

Can anyone think of a Astaro-sourced cause of this problem?
I'm looking at Zimbra as well but can't think of a reason for the issue.

Thanks,
Doug


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  • 0
    Doug, is this new behavior?  If so, have you tried restoring a configuration backup from back when there was no problem?

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • 0 in reply to BAlfson
    My email infrastructure has changed dramatically recently: from postfix to Zimbra [strong recommendation btw]

    I found the issue.  Problem associated with DNS.

    Thanks for the input.
  • 0
    If it's not too complicated, please describe your solution.

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • 0 in reply to BAlfson

    It's embarassing:  the  vm setup as the Zimbra server didn't have a fixed ip address. [Doh!] Astaro somehow mistook the DHCP request and gave it a new address from the pool.  This caused 'issues' with email in a number of ways I imagine you can guess.  My standards for my home mail server aren't any where near 'corp-ready'.

  • 0
    Thanks, Doug.  I know I've served as an object lesson too many times in the past (and will in the future, I'm sure)! [;)]

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
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