Problem with my outgoing messages - "553, sorry that doman isn't .

G

Guest

I use Windows XP. Recently upgraded software and using Microsoft Office
Standard Edition 2003. When I try to send an e-mail, keep getting message
from System Administrator saying "Undeliverable - 553, sorry that domain
isn't in my list of allowed rcpthosts (#5.7.1). PLEASE HELP - any advice
would be appreciated. Previously used Outlook 2000 and had no problems.
 
N

neo [mvp outlook]

Do you have to authenticate to the smtp server in order to send mail?
 

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