Whenever a user accepts a calendar invite from outside the organization, the following happens:
- the meeting posts to the calendar correctly
- the acceptance message is sent as coming from email@example.com
Regular mail is sent as coming from firstname.lastname@example.org
Why is the calendar acceptance message behaving differently? This is causing significant problems with an appliance further down the mail stream.
Full disclosure: I posted this same question on the IBM site (the president's secretary complained to my vp - so I apologize for the breach of etiquette.)