duplicate email messages

[terry1121]

When I leave messages on the server in order to get emails on my iPhone, I now get duplicate emails in my Entourage email client running on a Mac. Pretty frustrating and a time waster.

Is there anything I can do to stop the duplicate emails when I leave a copy on the server? It simply doesn't recognize that it pulled the email down for some reason.

I appreciate any help!!!

Thanks!!

Terry