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vBulletin SMTP error

Discussion in 'E-mail Discussions' started by dbrookeJP, Aug 24, 2016.

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  1. dbrookeJP

    dbrookeJP Member

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    Hello!

    vBulletin v5.2.3, PHP 5.6.24 (CLI), CPANEL 54 / CentOS 6.7

    vBulletin email diagnostic is throwing this error:

    Warning: fsockopen(): unable to connect to tcp://mail.example.com:25 (Connection refused) in .../vb/mail/smtp.php on line 181 Warning: Unable to connect to SMTP server in .../vb/mail/smtp.php on line 14

    telnet check via commandline from the virtual server seems to be successful.

    Any ideas why SMTP is not working?

    Thanks!
     
    #1 dbrookeJP, Aug 24, 2016
    Last edited by a moderator: Aug 24, 2016
  2. dbrookeJP

    dbrookeJP Member

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    This indeed turned out to be a setting in CPANEL:

    WHM --> Tweak Settings --> Mail -->
    Restrict outgoing SMTP to root, exim, and mailman (FKA SMTP Tweak)

    It was set to 'on'.

    There was a wasted day. :)
     
  3. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    I'm happy to see you were able to determine the reason for the connection failure. Thank you for updating this thread with the outcome.
     
    dbrookeJP likes this.
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