in reply to Mail::Field Help Needed

Could you provide the exact text of the error returned?

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Re^2: Mail::Field Help Needed
by gw1500se (Beadle) on Aug 31, 2008 at 21:40 UTC
    Thanks for the reply.

    Use of uninitialized value $by in concatenation (.) or string at ...

    The message is referring to the 'print' statement.
      I've never used the package, but the CPAN documentation mentions the parsed_ok method, which would let you know if the parse() was successful. Using that might help you shed some light on the problem.