On Tue, 28 Sep 2010 04:36:15 +0200 Florian Friesdorf <[email protected]> wrote:
> Hi, > > I host several mailing list with plenty of users having gmail > accounts. > > gmail blocks attachments with certain file endings (also if the files > are in certain archives): > > http://mail.google.com/support/bin/answer.py?answer=6590 > > I am using clamav-milter with postfix. Is it possible to implement > this policy through custom clamav signatures? From the signatures pdf > I was not able to figure it out so far. You can use .cdb signatures, it allows you to specify a regular expression for the filenames that you want to reject (it will reject them even inside encrypted archives). If you want to reject by content, you can do that as well (only for nonencrypted archives of course) by writing a signature for your filetype, and treating it as if it was a virus. Best regards, --Edwin _______________________________________________ Help us build a comprehensive ClamAV guide: visit http://wiki.clamav.net http://www.clamav.net/support/ml
