Have a look at Mail::Audit "Library for creating easy mail filters" while you're at it. There's also an article
on the subject on perl.com.
Are you posting in the right place? Check out Where do I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
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<li> <nbsp> <ol> <p>
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<sub> <sup> <table>
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tags should generally be avoided. If they must
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taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
Want more info? How to link or
or How to display code and escape characters
are good places to start.