IMAP send mail not working

Discussion in 'Installation/Configuration' started by AxelssonDesign, Oct 2, 2017.

  1. Hello,

    I now get this message when I send my mail through Thunderbird:
    How to fix ?
  2. Taleman

    Taleman Well-Known Member HowtoForge Supporter

    According to search results,

    To update, it looks like this issue was resolved adjusting the following values in "WHM Home » Service Configuration » Mailserver Configuration":

    Maximum Size of a Authentication Process (MB) to 128M
    Maximum Number of Authentication Processes to 70​
  3. Thanks for replay Taleman.

    I'm not using WHM. Do you know where I can change this values ?
  4. Jesse Norell

    Jesse Norell ISPConfig Developer Staff Member ISPConfig Developer

    You try to send mail (SMTP) and you see an error with an IMAP greeting? Do you have a port set wrong somewhere? Start with your mail client and make sure you're sending on 587 (or maybe 465), not 143, 995 or similar.

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