E-Mail Sync with Outlook Server

[albertan]

I just purchased a Touch Pro (on Telus) and have connected it to my Outlook server at the office. My problem is that when I delete an e-mail on my cell phone, it does not delete it from the Outlook server so when I return to my desk all the e-mails I deleted on the phone still remain in my inbox on my desktop. Is there a way that I can set it up so that when I delete on my cell they also delete off the outlook server at the same time so I do not have to delete each message twice? Any help on this would be greatly appreciated.