Yes I create cert with guide: http://forum.directadmin.com/showthread.php?t=53332Did you create the cert for the server hostname or for the domain?
The certificate for the server hostname will be installed on exim/dovecot/ftp to allow ssl connections with a valid cert, but will not work for the domain itself (like mail.domain.com) unless you add that in your /usr/local/directadmin/conf/ca.san_config and than request a cert for the server hostname with: /usr/local/directadmin/scripts/letsencrypt.sh request HOSTNAME 4096
Oh yes. I want to provide ftp connection over ftps for users and want to server provide that. It's not possible?The first screenshot talk about a name mismatch, the certificate is for server.turkweb.net , are you checking server.turkweb.net or turkweb.net? Please take in mind that those are two different domain, having different conf and different certificate.
What is maxxdunyasl.com? Is the domain you're checking or what?