[Dshield] Email blocking security question

Kenneth Porter shiva at sewingwitch.com
Wed Mar 5 03:07:45 GMT 2003

What about encrypted zip files? Presumably someone smart enough to open
that is smart enough to check it for viruses.

For a good scanner, check out the Procmail Sanitizer:


Questions like this come up on the Sanitizer mailing list regularly.

Also, the notion of blocking based solely on a list of extensions is a bit
more complicated than it might seem.

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