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I'm getting malware sent to me as .zip attachments that are zipped up exe files. I want to setup message filters to catch them but I can't seem to find a way to do that. I tried setting up a customize header but the value I was looking for was apparently in the attachment and not in the header. If I view source of the email there is the line Content-Type: application/zip; But it seems to be the actual attachment and body contains doesn't pick it up.

Anyone know if this is possible?


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I would like to do the same but with image files – RockScience Mar 4 '14 at 8:21
up vote 0 down vote accepted

Unfortunately, there is no such functionalty right now, although looking through the Mozilla bug and feature request lists - there are several people asking for this.

It is probably worth you raising a request at and seeing if they listen.

Hope this helps.

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