Exchange 2007 specify an address as not junk for all users

[HMCTech]

We are installing a new helpdesk system but unfortunatly the emails it sends out automaticly go into everyones Junk Email folders. Now not all people will look in this folder and know how to add the address as a safe sender. Is there any way in exchange to specify this as not junk and go straight into inbox? They are all part of our domain the emails being sent. Edited November 30, 2009 by HMCTech