I would add a couple of troubleshooting steps, as I don't think it's as easy as the article makes it sound.
If you're MTA or POA does not restart even though you see it in your monitor or agent monitor screen check these things ..
. When you created your local user , did you spell the name correctly and the password
. on each individual server that runs your POAs or MTAs does your /etc/opt/novell/groupwise/gwha.conf file have the EXACT (both spelling and case) verbiage between the brackets as the monitor? If your monitor shows PostOffice.Albany and your gwha.conf file has [postoffice.albany], that is NOT going to work.
. check your /etc/opt/novell/groupwise/gwha.allow file. It must the name of the local user your created (perhaps gwha)
. check /etc/xinitd.d/gwha on each server hosting a POA and/or MTA. This file tells gwha service on each server containing agents being monitored where the gwha software is. I've seen it be wrong right out of the box. For instance I've seen it pointing to /opt/novell/groupwise/bin/gwha when it should have been /opt/novell/groupwise/agents/bin/gwha.
. make sure you've started the gwha XINITD service inside of YAST, Network Services, Network Services (xinetd) by toggling it on.
I find almost all my problems by following these checks.