[Mimedefang] MIMEDefang 2.57-BETA-1 is available

[Cormack, Ken]

> MIMEDefang 2.57-BETA-1 is available from the download page:

I've been testing for a while, and as-is, its running well.  I really like
the new "hload" parameter to the multiplexor control tool.

> This change is experimental; the theory is that if we can lazily load
> modules, then slaves that spend their entire lifetime doing
"filter_recipient"
> calls won't need to load big Perl modules like SpamAssassin at all.
> (Currently, the sample filter does NOT do lazy module loading, so the
> scheduling change makes no difference yet, but we may rework the filter
> to take advantage of it.)

This is the feature I am most looking forward to.  ::drool::

Ken