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Thread: [SOLVED] Can send external but not send/recieve internal email

  1. #1
    gchino is offline Member
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    Question [SOLVED] Can send external but not send/recieve internal email

    Hi, I'm new to this and I have been giving a task on setting up email on Zimbra using Fedora 7. I got Fedora and Zimbra installed correctly and have successfully sent out emails to an external email address.

    When I try to reply back I get "undelivered mail returned to sender." When I try to create a new email from an external accountand send it off from my test account I get "The e-mail system was unable to deliver the message, but did not report a specific reason. Check the address and try again. If it still fails, contact your system administrator."

    I also have not been getting any response when attempting to send emails internally. I'm gonna need some major help and Thanks to everyone in advanced.

  2. #2
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    mmorse is offline Moderator
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    Welcome to the forums,

    If you listed your domain we could check mx records for you - or you can do a "dig mx domain.com"

    Can you telnet to port 25 on that box? (from the outside - not any boxes on your lan)
    If not: firewall or even your hosting provider blocking port 25?

    Do a tail -f /var/log/zimbra.log do you see the connection attempts? what are the errors there?
    -check the queue's
    If that appears ok, then tail -f /opt/zimbra/logs/mailbox.log do you see the mail showing up there?

    If not, the next question would be in regards to your dns setup...does this box have both a private & public ip?
    Split DNS - ZimbraWiki
    /blog/archives/2007/06/making_zimbra_bind_work_together_1.html
    Last edited by mmorse; 09-25-2007 at 03:33 PM.

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    gchino is offline Member
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    Domain is sleeplms.net
    I can telnet to port 25 from outside the network.
    When I do a tail to the zimbra.log nothing is there
    When I do a tail to the mailbox.log I do not see any error messages.
    The box does have a public and private address. I will read about splitting DNS. Is there anything else I should look at?

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    mmorse is offline Moderator
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    Ok so your not gettting anything in the postfix log-so we'll start with dns:
    -you have 2 authoritative mailservers on that domain right now
    -70.91.46.20 should be an A record

    If your not akin to using dig there's several websites that will check the setup for you:
    http://pingability.com/zoneinfo.jsp?domain=sleeplms.net
    http://www.dnsstuff.com/tools/dnsreport.ch?domain=sleeplms.net

  5. #5
    gchino is offline Member
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    MMorse, I would like to thank you for your help. That web page pingability informed me that I had some MX records problems. So I reconfig my dns and its finally working. I will do more testing but it looks pretty stable now.


    Once again thank you for your assistance.

  6. #6
    mmorse's Avatar
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    no problem & welcome to zimbra!
    -i'm gonna mark this thread as solved

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