TODO: cleanup dirs /etc/dovecot
systemctl status dovecot
systemctl restart dovecot
/etc/dovecot/private/fullchain.pem
/etc/dovecot/private/privkey.pem
openssl x509 -in /etc/letsencrypt/archive/imap.homlish.net -text
cp /etc/letsencrypt/live/imap.homlish.net/fullchain.pem /etc/dovecot/private/
cp /etc/letsencrypt/live/imap.homlish.net/privkey.pem /etc/dovecot/private/