Would it be possible to add configuration options that
say what file types are supported? This should be a
tristate option for each file type since for a file
type you can:
1) analyse the file
2) let the file through
3) always reject the file
Eg. I wish not to analyse arc files and would like to
quarantine all mails containing arc files.
I picked arc as an example since the code has several
buffer overruns. Also by embedding a newline in a
filename in the archive, an attacker can stop amavis
from analysing all of the archive.