I have exchange 2007 on my server and the user has outlook 2007.
I have configured the first exchange mailbox and used the tools>e-mail accounts>account settings>advanced>and added another exchange account.
the user claims that few weeks ago, when she wrote a new e-mail it was “from” the mailbox she stands on..
Meaning, when she was in the “User 1” Inbox, and created a new e-mail, it was “from” user 1.
When she was in the “User 2” Inbox, and created a new e-mail, it was “from” user 2.
Now, all e-mails are “from” user 1, unless she changes it manually..