Hi, I'm about to perform this upgrade on Netware 6.5 sp7 using Danita's
Upgrade Guide for GroupWise 8, and while I don't anticipate any issues I
thought I should do the right thing and ask the gurus here before I begin.

I have a fairly straight forward GW implementation:

Server 1: Primary Domain, Post office
Server 2: Post office
Server 3: Secondary Domain, Post office
Server 4: Post office
Server 5: Secondary Domain, GWIA/Webaccess
Server 6: Secondary Domain, GWIA/Webaccess

Following Danita's guide (Which I used for 6.5 to 7.0 and was excellent I
might add) I intend to do the following split over several weeks.

Upgrade Servers 1, 2, 3 and 4 (Netware 6.5 sp7)
Leave in place Servers 5 and 6 temporarily (a couple of weeks) (OES1 linux
Create and install new Secondary Doms, GWIA's and Webaccess on two new OES2
Upgrade clients over the following 3 to 4 months.

My only real concerns (unless others are brought up here) are:

1. has anyone seen any issues with communications between different versions
of MTA's
2. any issues at all with gw7.0.2 clients accessing gw8.0.1 post offices
3. has anyone had to do a roll back, and what did it involve?