Hello,
I have an Exchange 2010 SP1 where user A's e-mail address was requested by user B. I removed user A's e-amil address, changed their e-mail, and I gave that e-mail to user B.
User B can now receive e-mail fine from outside the network or from Webmail, but local Outlook clients who send to that e-mail are getting their e-mails sent to user A's mailbox.
I update the GAL on an Outlook client and checked to make sure that the GAL reflected the new user and it does. Still, local Outlook clients are still sending to the old mailbox.
Any ideas?