Mail is not working SnappyMail

Support and Discussion
9

These commands are for RHEL based distro. With your reaction I can assume you not very conversant with the differences I wish you said this before.

As for the mail server ssl issue here is a solution:

  1. Run rm -rf /etc/letsencrypt/live/mail.mydomain.com to remove all mail certificates
  2. Run nano /etc/dovecot/dovecot.conf to remove mail certificate directive
local_name mail.mydomain.com {
        ssl_cert = </etc/letsencrypt/live/mail.mydomain.com/fullchain.pem
        ssl_key = </etc/letsencrypt/live/mail.mydomain.com/privkey.pem
}

Then run systemctl restart dovecot && systemctl status dovecot