How to disable email copy being sent on posts

Hello:

I have set up WordPress 1.5.3 so that I can post to it by email. The weird thing that I am observing however is that for every post I make (though email) I get a copy sent back to me through the administrator’s email adress. I have looked up and down in the admin panel but have been unsuccessful so far at locating the setting which can disable this copy being fired back to the admin account.

Any help is much appreciated. Thanks in advance.