I have latest DA + Installatron + Ubuntu 16.04.
I can enable LetsEncrypt for www and without, but not for pop, ftp, smtp, imap.
This what happens:
1
2021/04/18 23:21:04 [INFO] [<DOMAIN>.com, ftp.<DOMAIN>.com, imap.<DOMAIN>.com, mail.<DOMAIN>.com, pop.<DOMAIN>.com, smtp.<DOMAIN>.com...