Different rules for files within archives

Julian Field MailScanner at ecs.soton.ac.uk
Fri Mar 27 15:36:48 GMT 2009

This is turning into a very major job, requiring many changes throughout 
the whole of MailScanner, as the original design was never intended to 
be able to do this.
However, I am working on it.
The intention is that you will have totally separate settings for
     Filename Rules
     Filetype Rules
     Allow Filenames
     Allow Filetypes
     Allow File MIME Types
     Deny Filenames
     Deny Filetypes
     Deny File MIME Types
for archived and non-archived attachments.

You will also be able to specify what you consider to be an "archived" 
attachment, be it a file in a zip attachment, a rar attachment, an OLE 
attachment (Word doc, for example), a UU-encoded attachment and a TNEF 
(winmail.dat) attachment.

All these settings will be on a per-message basis and so will take 
rulesets, allowing different clients to have totally different rules for 
their setups.

That's the aim. I'm over half way through the implementation now, but 
none of it has been tested yet. There's going to be a fair bit of 
debugging required, I guarantee that. So beta-testers, on your blocks 
please... :-)

Hopefully this will keep you all happy for a little while ;-)


Julian Field MEng CITP CEng
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