While the "attachment file types" feature is enabled and set to Quarantine using the "Sophos List" no emails from Gmail, Outlook and probably others are delivered.
If I toggle this feature off, emails are delivered. The emails never show in quarantine and the sender does not receive a notification. End user will never be aware there is a email stuck in the system.
Added tags
[edited by: Raphael Alganes at 9:15 AM (GMT -7) on 11 May 2023]