How Do You Stop A E-mail?

[Gfields]

Have you tried moving your outlook.pst file, so it comes up with a blank when you open it.
It should then create a new one, and you can open the old one later to bring all your old data across.Even if it tries sending when you open the old one again, you should be able to access the data.

You could even try putting it back later, after you close it.

Hope this helps