Relating to the dovecot/exim mail_sni feature; https://www.directadmin.com/features.php?id=2019 This feature will now be enabled by default for new installs. This will be done by having: mail_sni=1 present by deafult in the data/templates/directadmin.conf. As the internal default will still be: mail_sni=0 If you don't have it set in your directadmin.conf, it will be still be off. Existing installs won't be affected by the template change, since it's only used for new installs. It can still be enabled normally via id=2019.