I have just installed Exchange 2007 enterprises into an existing Exchange
2003 Standard environment. The 2007 server has integrated in the mail system
and has taken over the mail traffic for the network. It is sending SMTP
traffic out of the organization without problems or errors.
Here is the problem:
I have moved a single mailbox to the 2007 server. The user can login and
receive mail but cannot send. The mail just sits in the Outbox. No errors are
created on the workstation or the server.
Any help or ideas?