ANNOUNCE: Unstable 4.28.1 released

[Spicer, Kevin]

Julian Field wrote:
> Some code to help you with the current outbreak of viruses hiding
> inside zip files.
> 
> It will scan zip archives down to a max nesting depth set in
>          MailScanner.conf like this: Maximum Zip Archive Depth = 3
> 
This looks very promising, I've just had a read of the code as I'm not in a position to do an install right now.  If I'm reading it correctly it identifies archives by extension (right now this is a good thing for me, as it provides a way of deliberately getting a zip through).  Two questions...

This uses the same filename and filetype rules as the rest of the message, which could be problematic (for example I might wish to ban pif/scr/bat files but allow zipped exe files through) - I imagine doing anything about that might be a right PITA.

Slightly less difficult I hope, is it possible to have the option to mark a file for deletion if it contains an element that cannot be unpacked (e.g. specifically a password protected file).  Right now that would be very useful indeed.



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