Hi folks, just helping a guy out in a forum I go to.

His ? is:

Hi

I'm trialling Office 2007 (120 day trial). In Outlook I can receive messages
okay but whenever I reply to a message or send a new one I get the following
error message on an undeliverable 'system administrator' message:
501 #5.1.1 bad address

The addresses I'm e-mailing are all okay so I can't figure it out.

Does anyone know?

Any info appreciated

Thanx