outlook e-mail problem

[Guest]

now that connect to the internet using broadband connection with wireless USB adapter, I cannot send any e-mails. I can receive them, but when I try to send I get message saying: 550 relaying to <[email protected]> prohibited by administrato
message from system administrator???????????????????????????

 

[Bruce]

now that connect to the internet using broadband connection with wireless
USB adapter, I cannot send any e-mails. I can receive them, but when I try
to send I get message saying: 550 relaying to <[email protected]>
prohibited by administrator
message from system administrator???????????????????????????
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See this:
http://insideoe.tomsterdam.com/problems/errors.htm#550relay

Bruce