There are countless causes for this error, and you've provided no
information. Search the KB for the solution that most nearly matches your
version and your steps to repro.
--
Russ Valentine
[MVP-Outlook]
"Mervin Williams" wrote in message
...
I am receiving the following error when trying to delete some contacts:
"The messaging interface has returned an unknown error. If the problem
persists, restart Outlook."

Please help!

Mervin Williams