Outlook 2007 OMS - Undeliverable Issue

I recently had an Outlook 2007 Messaging service with RedOxygen, to receive Microsoft Exchange emails via text message. I set up the service through Outlook, with the messages being sent to my phone. I then decided that I didn't like this method, so I cancelled my service with RedOxygen and removed the OMS email account in my Outlook.

Now I am receiving concurrent emails each time something is emailed directly to me. One is the actual email message, the other is the following message below:

*email and phone number changed for privacy*

This is only happening on my local machine. I have tested emails on other computers and only receive the "undeliverable" emails from my own computer. Both AD and the Exchange Server show my profile as having OMS Disabled.

_____________________________________________________________________________

Your text message couldn't be delivered to these recipients or groups:

MOBILE:0013171231234 The mailbox of user XYZ@indot.IN.gov that is located on a server that is running version 8 can't be opened on a server that is running version 14.

 Diagnostic information for administrators:

Generating server: IOTsample01VW.state.in.us

IMCEAMOBILE-0013171231234@state.in.us #554 5.4.4 Unable to route ##

Original message headers: