Since I changed hosting companies, my outgoing e-mail is restricted to inner
office. An example of the error is:
Your message did not reach some or all of the intended recipients.

     Subject:    test
     Sent:    3/20/2007 11:09 AM

The following recipient(s) could not be reached:

     Daily Sentinel (rcortez@gjds.com) on 3/20/2007 11:09 AM
           553 sorry, that domain isn't in my list of allowed rcpthosts
(#5.7.1)

Any idea what setting this is?   thanks