Charlotte Howard wrote:

One of my users regularly sends out meeting requests to Senior
Managers, and Support Staff. A member of the support staff left a
few months ago and their user account was removed from AD. Their
mails are not forwarded to another user.

When my user sends a meeting request now using his distribution list,
he gets an undeliverable from the ex staff member. He has deleted the
distribution list and recreated it, but still gets the undeliverable.

He should make sure he removes the DL name from the autocompletion cache and
then re-resolves the name afresh.
--
Brian Tillman