Kamaldeep Singh skrev den 2013-11-14 10:46:

 Thanks for information. But I have written one rule to block exe
file. Like if someone sends an email with attached exe file. It won't
send. It's display an error like "this attached file is blacklisted".

this is using amavisd imho if you see this

 Is there any rule we can write so that we can blacklist the zip/tar
files which contains "exe" file.

foxhole rule in clamav unpack and match if there is any exe file matching this rule file, so its not just there is a zip/tar attachment, hope i have not lost you here

you cant make this done in spamassassin entirely yet since spamassassin does not unpack


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