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SSL verify error: certificate name mismatch

Discussion in 'E-mail Discussion' started by kernow, Feb 15, 2017.

  1. kernow

    kernow Well-Known Member

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    For the last few days some mail sent out is not being delivered due to SSL cert mismatch, example from logs:
    SSL service cert supplied by cpanel Any ideas?
     
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  2. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    The SSL warnings should not actually prevent delivery. Instead, it looks to relate to the following error:

    This message often appears when the system lacks a valid RDNS entry for the IP address used to send email. Check to ensure a RDNS record exists from the IP address used for sending email to the proper hostname. Your data center or hosting provider can help you to setup the record.

    You may also want to verify you can connect to that remote mail server over port 25 by running the following command from your system:

    Code:
    telnet remote-mail-host 25
    Thank you.
     
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  3. kernow

    kernow Well-Known Member

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    Hello,
    We don't like the security implications of installing telnet. However the server does have a valid PTR (reverse DNS) record. Also the SSL warning is preventing the mail from being delivered as it remains in the mail queue for a few days and resending/forcing just returns the same error.
    EDIT
    After restarting exim and forcing a mail run, the mail is now delivered. Go figure ........
     
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    #3 kernow, Feb 16, 2017
    Last edited: Feb 16, 2017
  4. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    Let us know if you encounter any additional issues.

    Thank you.
     
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