mailkit

  1. V15.5 SP6 - MailKit cannot connect to my postfix SMTP server

    Since upgrading to SP6 I'm having trouble with connecting to my Postfix SMTP server in the email settings. My Postfix server is hosted on the same subnet as 3CX and is set to only allow SSL/TLS. I use letsencrypt for SSL and the certificates are verified as valid. This SMTP server is...
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