MS outlook sending message issue

[Tony]

Hi

I hope someone can help. This message now appears on outlook when I
try to send a message (its brand new and I can't send messages).

Can anyone help/give any advice


Thanks

Tony

The message could not be sent because one of the recipients was
rejected by the server. The rejected e-mail address was
'(e-mail address removed)'. Subject 'Emailing: pay', Account:
'pop.freeserve.com', Server: 'smtp.freeserve.com', Protocol: SMTP,
Server Response: '550 Administrative prohibition', Port: 25,
Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC79

 

[Jeff Stephenson [MSFT]]

You might try setting up authentication to your outgoing server (on your
account dialog, click on "More Settings..." then go to the "Outgoing Server"
tab). If that doesn't help, contact your mail provider and ask why their
server is rejecting your messages.