Confusing Error Message HELP NEEDED!

[penguin88]

When I try to add a contact or calendar item of edit and existing one
get the following message; _

"The messaging interface has returned an unknown error"

Nowhere can I find any reference to this type of error message. An
suggestions from this board??

 

[Brian Tillman [MVP - Outlook]]

When I try to add a contact or calendar item of edit and existing one I
get the following message; _

"The messaging interface has returned an unknown error"

Nowhere can I find any reference to this type of error message. Any
suggestions from this board???

I'd try a new mail profile.