email certificate

Discussion in 'ISPConfig 3 Priority Support' started by Tom John, May 10, 2022.

  1. Tom John

    Tom John Active Member HowtoForge Supporter

    Hi guys,
    i am using ubuntu 20.04 and ispconfig 3
    i setup a mail server which is mx1.cl-i.net
    there i setup the mail accounts.
    when i setup the email account in thunderbird i get the following error:
    Code:
    you are about to overwrite how thunderbird identifies this side
    location cl-i.net
    wrong site - the certificate belongs to a different site, which could mean that someone is trying to impersonate this site
    
    
    i have the option to permanently store this exception but i would like to know what i made wrong with the configuration?
    it would be great if you could give me some help
     
  2. Th0m

    Th0m ISPConfig Developer Staff Member ISPConfig Developer

    Can you share the hostnames you used in Thunderbird?
     
  3. Tom John

    Tom John Active Member HowtoForge Supporter

    Hi Thom,
    thanks for your quick reply.
    the hostnames are:
    mx1.cl-i.net for imap and smtp
     
  4. till

    till Super Moderator Staff Member ISPConfig Developer

    That's the name that is returned by the following command?

    hostname -f
     
  5. Tom John

    Tom John Active Member HowtoForge Supporter

    hi there, thanks for taking care of my problem.
    Code:
    tomdf@mx1:~$ hostname -f
    mx1.cl-i.net
    tomdf@mx1:~$ 
    
    
     
  6. Th0m

    Th0m ISPConfig Developer Staff Member ISPConfig Developer

    Seems like there is a valid SSL cert for mx1.cl-i.net for the SMTP and IMAP ports.

    Be aware that the cert will expire in 20 days, it should be automatically renewed 10 days ago, so something is going wrong.

    Do you maybe have a hosts file pointing to a old server for mx1.cl-i.net?
     

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