I would like to propose updating the pre-test filter by changing this line:
MAILFROM END PCRE
(?i:@(mta|notify|alert|response|mail|noreply|list|send|bounce|news|shop|List-Unsubscribe|k12|notif|store|state|relay|envfrm)\.)
to
MAILFROM END PCRE
(?i:@(mta|notify|alert|response|mail|noreply|list|send|bounce|news|shop|List-Unsubscribe|[a-z0-9---_]*\.k12\.[a-z]{2}|notif|store|state|relay|envfrm)\.)
This would allow school addresses to bypass this filter (I am getting a LOT
that are directed to to the Junkmail folder) as the MAILFROM 20 hit most
legitimate school email addresses.
I am not aware of any users with an @k12 address,