From : Blog Entry>>ILTA’s Blog Entry
Don’t Depend on Recall If you send a message you want to withdraw, you can try Recall, but don’t hold your breath. It seldom works. If you want to try, here’s how: Open the message you hope to recall. In the Move group, click Actions and select Recall This Message from the dropdown. In the resulting dialog ( Figure D ), choose one of the delete options and click OK. Now, this feature is great in theory, but the reality is, it will probably fail because: The message must be [More]