Relaying denied. Proper authentication required.

[Guest]

We have recently changed email from Netscape to Outlook 2003. When we try
and reply or forward an email we get the following message

550 5.7.1 <********@hotmail.com>... Relaying denied. Proper authentication
required.

what can I do?

 

[Vince Averello [MVP-Outlook]]

What SMTP (outgoing mail) server are you using?

 

[Guest]

It is the same as our incoming mail

What SMTP (outgoing mail) server are you using?

 

[Vince Averello [MVP-Outlook]]

Are you on the same network as that server?