Xerox 7845 not sending scan to email

We have a Xerox WC 7845 setup in our office and we can scan to our network and also we can scan to email, as long as the email is the same as our domain.  If I try to add an email to the address book that isnt our domain, it does not receive the scan email.

The Xerox will say Sending and Complete.  But it will never show up.  I have tried a clients email, gmail and even my own personal email and none of them go thru.

The Xerox was setup before I came onboard to the IT dept.  Ive looked thru all the settings but cant find anything.  What am I missing?

Thanks

Jeff