Using TLS to connect to mailserver

ansible/roles/ispmail-webmail-apache-roundcube/templates/config.inc.php.j2

@@ -32,7 +32,7 @@ include_once("/etc/roundcube/debian-db-roundcube.php");
 // %d - domain (http hostname $_SERVER['HTTP_HOST'] without the first part)
 // %s - domain name after the '@' from e-mail address provided at login screen
 // For example %n = mail.domain.tld, %t = domain.tld
-$config['default_host'] = 'localhost';
+$config['default_host'] = 'tls://{{ispmail_fqdn}}';
 
 // SMTP server host (for sending mails).
 // Enter hostname with prefix tls:// to use STARTTLS, or use
@@ -44,7 +44,7 @@ $config['default_host'] = 'localhost';
 // %d - domain (http hostname $_SERVER['HTTP_HOST'] without the first part)
 // %z - IMAP domain (IMAP hostname without the first part)
 // For example %n = mail.domain.tld, %t = domain.tld
-$config['smtp_server'] = 'localhost';
+$config['smtp_server'] = 'tls://{{ispmail_fqdn}}';
 
 // SMTP port (default is 25; use 587 for STARTTLS or 465 for the
 // deprecated SSL over SMTP (aka SMTPS))