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554 Certificate rejected over TLS. (unknown protocol)

Discussion in 'E-mail Discussions' started by BearcatScott, Jun 1, 2016.

  1. BearcatScott

    BearcatScott Registered

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    Some people are getting this error when sending email to us (see below). However, some days the email comes through and others they get the 554 Certificate rejected error. Does anyone know how to fix this? From doing some searching around, it looks like we need to use the SSL/TLS Manager to fix this but that does not show up on our Security in cPanel. I believe that is because we do not have a static ip address. I am at a loss. TIA

    Diagnostic-Code: smtp; 554 Certificate rejected over TLS. (unknown protocol)
     
  2. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    Could you review /var/log/exim_mainlog and /var/log/exim_rejectlog and let us know the output when this happens? EX:

    Code:
    exigrep user@domain /var/log/exim_mainlog
    Thank you.
     
  3. BearcatScott

    BearcatScott Registered

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    I'm not sure how to review those logs. What I have access to is the cpanel UI. Here is what I have to choose from in the UI. I looked at the Error Log and Raw Access Logs but these appear to be only for our website.
     

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  4. cPanelMichael

    cPanelMichael Forums Analyst
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    You won't be able to review those logs without root access to the system. You will need to report this issue to your web hosting provider so they can take a closer look.

    Thank you.
     
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