Hello,

We are running MD 2.56 with the MD multiplexor and embedded Perl.

In our configuration, we modify some custom variables in the filter 
subroutine, and use these values in filter_end for attachment reporting, for 
example.

If we do not undef these variables after using them in filter_end, subsequent 
MD slaves appear to add to them. For example, our array containing a list of 
attachments will grow.

Is it recommended to undef these variables in filter_end? Is this documented 
anywhere?

Checking the mailing list, I noticed this email with the same basic question:
http://lists.roaringpenguin.com/pipermail/mimedefang/2002-August/002043.html

One more question:

Will $Sender or any of the elements in @Recipients ever have angle brackets? 
Reading through mimedefang-filter (5), I see that $sender in filter_sender 
may, and that $recipient in filter_recipient may, but I was wondering about 
those global variables.

Thanks!

Brandon Hutchinson
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