Incoming attachments with multiple "." in the name

James Gray james at
Thu Dec 1 21:05:21 GMT 2005

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On Friday 02 December 2005 04:58, Scott Silva wrote:
> This isn't from clamav. This is from the filename checks in MailScanner.
> You could disable this, maybe dangerous maybe not, or get your users to
> use some other de-limiter like - or _ instead of a "dot". If you are
> using the filetype checks, you might get away with disabling this.

I've been thinking about what it would take to make a check using both the 
filename and filetype checks.  IOW, if the file is named "mydoc.txt.doc" and 
the filetype check yields it as something other than a word document, it gets 
quarantined etc.

The difficulty is that you'd need to construct a fairly extensive map of file 
extension<->file type.  That's a bit of a show-stopper, and difficult to 
maintain IMHO.  Not sure if it would be particularly useful, but figured I'd 
post my meandering thoughts here for comment.


It's not the fall that kills you, it's the landing.

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