If a attachment named "innocentfile.pif" arrives it is rejected with the reason "Attachment name 'innocentfile.pif may not end with '.pif'"
Thus, in the extremely unlikely case that someone really means to send
a .exe attachment they get a rejection clearly stating what the problem
is.
I know this is off topic for a SIMS list, but with this postfix content checking, can you whitehole certain people to NOT have their content checked?
No. Postfix's content checking is all or nothing. If you need user level control you will need to use a tool like procmail to filter and then discard bad attachments.
I'm thinking VERY VERY much of moving to postfix as an inbound relay for
SIMS so I can do this kind of checking. But I have one guy who sends me a
.bat and .exe file once a month for a project we do here.
Train him to zip the file. No one in this day and age should EVER be in the habit of sending or receiving executable attachments. If he resists, point out all the tens of thousands of windows worms and viruses.
It would be
some effort on his part to change the attachments as they are generated
from an old program and emailed automatically. It would also be an issue
to retrain the people here to deal with the attachments in some other
form.
Just my opinion, but I would say any training/adjustment would be worth it and you would see immediate benefits. (all those virus payloads would never get delivered).
-- Sarah, age 18, says "man, once you go crayola you can't go back."
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