Hello,
Running 2.8.1 I cannot update the Administration->Email Settings->SMTP Server field, I have tried using both DNS names and IP addresses but always receive "Error while modifying Mail settings. The Smtp Mail Settings blahblah.com does not exist". Or for an IP address "Error while modifying Mail settings. The Smtp Mail Settings x.x.x.x does not exist".
DNS is working correctly (confirmed via CLI and the diagnostic tools within GUI).
Thanks,
Dave
