Error message: the messaging interface has returned and unknown error if the problem persists restart outlook
Posted on 2007-03-26
When I try to create a new contact in Public Folders>Contacts and also when I try to reply to an internal Calendar meeting invite, I get the following message:
"The messaging interface has returned and unknown error. If the problem persists, restart Outlook."
I am unsure whether it may occur in other circumstances, but normal emailing seems fine.
I'm using Outlook 2003 SP2 on XP Pro SP2.