Hi,
I would greatly appreciate if IMSCP would ask the user for a cert for use in the mail servers during setup/update. Reason for this: I do have a cert for my primary mail subdomain (mail.foo.bar) but not for the server FQDN (somelongnumber.somevserverprovider.foobar). For the admin interface I use the self signed cert IMCP auto generates. So currently after each update I have to edit my dovecot.conf and postfix/main.cf and change ssl_cert/..l_key and smtp_tls_cert_file/.._key_file.
Also I would like an option to require all client-side mail traffic to be TLS enabled (ssl=required in dovecot.conf, smtp_tls_auth_only=yes in postfix/main.cf).
The same for Proftpd (TLSRequired on) would be nice too 
Thank you & keep up the great work!
