[Mimedefang] MIMEDefang embedded perl stability issues

[Martin Blapp]

Hi,

> > noticed some stability problems when using the embedded interpreter.  Every
> > morning at 5am the MD multiplexor essentially craps out,

We had the same issue. We found that unproper handling with global variables was
the cause.

So use 'use strinct' in mimedefang-filter and be careful with global variables.
Defined them in the class qw(). Then the errors may stop.

Martin