Error message/trying to send email

[Balletbear]

Today I started having troubles sending out email.
I am getting the message below.
Your message did not reach some or all of the intended recipients.

Subject: Good Morning

Sent: 10/17/2003 11:41 PM

The following recipient(s) could not be reached:

XXXXX on 10/17/2003 11:41 PM

553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)

When I get this message the email bounces back to me imediately, it looks
like

it is going right from my outbox to my inbox.

Any ideas? The only thing different is I installed a Linksys router not sure
it

that is the problem.

 

[Balletbear]

By the way when I test my email settings all works as it should.