eDir 8.8.5

Last weekend, I upgraded my GroupWise system from 7.04 to 8.02HP2.
I also applied the edir885_6 patch to the servers.

Prior to the weekend's work, the system had been rock solid.

In the past three days, I've had the main email server abend 5 times, all
due to the POA's GWIMAP-SSL-post-Handler.
In two instances, the server did a double abend before I was able to reboot

May 31, 2011 3:50:38.116 pm
May 31, 2011 5:14:42.482 pm

June 1, 2011 11:03:43.354 am

June 1, 2011 8:24:53.608 pm
June 1, 2011 9:49:47.727 pm

We are using Notify-Link's services for our mobile device users and have set
up the system so that their process contacts the POA via IMAP.
Our firewall is set up to block any other outside IMAP requests and none of
our users' clients connect with IMAP.

I read a thread dated from October 2010 that discusses the advantage of
running IMAP traffic against the GWIA, instead of the POA.
This had been recommended to the poster at the 2007 Brainshare event.
Given that we have less than a dozen Notify-link accounts, I can't imagine
that the 8.0.2 version of the POA has become so much more fragile than the
7.0.4 version.

The server's only duty is the single 450 user postoffice in the system and
the primary domain.

GWIA duties are handled by another server running a secondary domain and the
GWIA agent.
A third server runs the webaccess, which also runs against the GWIA's
secondary domain.

Hardware: Dell Poweredge 860 - single Xeon 3060 CPU, 4GB memory

I'm not sure that it's relevant to the situation, but the only post SP8
patches that hasn't been applied to this server are:
Oct 2009 NMAS methods 282 FTF1
Feb 2010 NMAS patch 1
Aug 2010 SLP update

Any cogent suggestions are welcome.