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Port 587: SMTP Command Timeout - closing connection

Discussion in 'E-mail Discussion' started by wcs2, Jul 3, 2015.

  1. wcs2

    wcs2 Member

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    This is weird, but I'm hoping someone might be able to point me in the right direction:
    I have two emails from one of the domains on my server that are timing out. They have one recipient in common.
    When I try to force send it from the queue, I get this result:
    R=lookuphost T=remote_smtp defer (110): Connection timed out

    In researching the problem, I was led to check port 587 through telnet and when I did that, I got this message: SMTP command timeout - closing connection

    I can't find much help on how to get past this point. Does anyone have an idea?

    Thanks!
     
  2. dalem

    dalem Well-Known Member
    PartnerNOC

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    remote_smtp defer (110): Connection timed out

    means the remote server is either down or your servers IP is blocked
    there is nothing you can do

    you do not know if the remote server is listing on port 587 (unless its your server)

    you should check the default port 25
     
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  3. wcs2

    wcs2 Member

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    Got it, thank you.
     
  4. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello :)

    Another step you can take is to try connecting to that remote server over port 25 from another server to see if it's blocking all connections or just connections from your cPanel server.

    Thank you.
     
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