[Mimedefang] Spammer zombie group behaviour

[Paul Murphy]

> I'm just experimenting with adding greylisting, and doing it after 
> the RCPT TO. I'm curious as to why Groupwise makes that a problem.

See
http://lists.roaringpenguin.com/pipermail/mimedefang/2004-January/019541.html

Also, note that Groupwise has had several security problems in its SMTP module
over the years, and had a habit of taking the whole server down with it when it
failed to interpret the standard correctly, plus its anti-relaying option didn't
work for a long time, so anyone who was running it as their Internet-visible
server was mad.  

I used it extensively in a previous position, and liked the main system (which
was, and still is, much better than Exchange and Outlook), but I had it behind a
Sendmail system.  It will undoubtedly have improved in the last three years, but
I still believe that anyone using a proprietary SMTP server as their main public
interface needs a nice leather couch to lie on - would you make Exchange or
Notes SMTP services visible to the whole of the Internet?

Best Wishes,

Paul.
__________________________________________________
Paul Murphy
Head of Informatics
Ionix Pharmaceuticals Ltd
418 Science Park, Cambridge, CB4 0PA

Tel. 01223 433741
Fax. 01223 433788


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