May 6th, 2019:

Mail Services: Whitelist Behavior Change

We’re changing the behavior of the whitelist for the “All Filters” entry type to now include the Antivirus filter when whitelisting.

The original behavior for the last decade or so has been to continue applying the antivirus filter while whitelisting everything else unless a second whitelist entry was added explicitly for the antivirus filter. Lately we’ve spent too much time explaining this, so we’ve decided the time has come to change the behavior so that an “All Filters” whitelist entry now truly means all filters (including antivirus).