I just set up a new HP m9250f with Vista Home Premium.  I started using
Windows Mail at first because set up was easy. Now, I've installed Office
2007 Pro. When I launched Outlook the first time, I went through the set up
to use it as my primary e-mail program. I imported all my Windows Mail files.
I receive mail in Outlook, but I cannot send. Every e-mail I send returns
with something like:

"Your message did not reach some or all of the intended recipients.

     Subject:    FW: Test
     Sent:    5/18/2008 8:43 PM

The following recipient(s) cannot be reached:

     'daleakin@hotmail.com' on 5/18/2008 8:43 PM
           550 5.1.2 You(ip:222.117.136.72) are NOT allowed to RELAY
(receiver:daleakin@hotmail.com)."

Oddly, I can send from Windows Mail.

Can anyone help?

Thanks.