First of all is it possible to send Outlook Task (office 2003 or 07) to another domain (not in same forest and no trust) both domains are running exchange (one standard 2003 other SBS 2003) and both use MS office (2003/07) as their email program.
The issue is when sending task to the user on the other domain they get it as an text email (no option to accept, change % complete ect) Example below
Subject: Test task to dennis
Status: Not Started
Percent Complete: 0%
Total Work: 0 hours
Actual Work: 0 hours
It works fine Internal in both domains, and calendar appointments between two domains works fine.
Can you please let me know if this should be working? and if so how to get it working.