To show Messenger presence in GroupWise, one of the following must match between GroupWise and Messenger:
GroupWise DN matches Messenger DN.
GroupWise preferred email address matches the mail attribute stored in Messenger. You can store the mail attribute in Messenger by doing an LDAP sync.
GroupWise preferred email address matches the userid@defaulthostid in Messenger that is constructed from the user settings and their assigned policy.
NOTE:Only the users in your contact list show their presence in GroupWise. If you do not see a user’s presence in GroupWise, you must add them to your Messenger contact list and then restart the GroupWise client so that it picks up the new Messenger contact.