Of course, it doesn't include archive files (Zip, Rar, etc), but does cover
just about everything that can be directly executed by Windows.
Steven Dickenson <sdickenson@???>
The Key School, Annapolis Maryland
From: Chris Edwards [mailto:firstname.lastname@example.org]
Sent: Friday, March 26, 2004 7:45 AM
Subject: Re: [Exim] ACL to ALLOW only mentioned attachments type and block *
| > Can i write a ACL which allows only specified attachments type and
| > BLOCKS all * | | I'm wildly guessing here, as I haven't tried to see if this actually works
| with the way Exiscan hooks into the ACLs, but how about: |
| deny message = Bad attachment
| !demime = txt
| | if you only wanted to allow attachments with a "txt" extension?
Interesting. Our management recently suggested a "default deny" policy
for file extensions. Quite tempting, considering the state of M$
I hate to think how many dangerous filetypes are not on our banned list.
Of course, outside of the M$ world these are arbitary file names. A unix
user might be mailing yesterday's results in a file called "results.thu"
and get blocked. Not really practical here.
Chris Edwards, Glasgow University Computing Service