cannot send e-mail in Outlook Express

[Barn]

cannot send e-mail in Outlook Express
I receive the following message: "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 'Unsubscribe',
Account: 'POP3', Server: 'smtp.rcn.com', Protocol: SMTP,
Server Response: '550 relaying to
<[email protected]> prohibited by administrator',
Port: 25, Secure(SSL): No, Server Error: 550, Error
Number: 0x800CCC79"
HELP - please advise

 

[John A]

Anti Spam procedures with chenevert.net are probably causing this -
could be you are forwarding a message from someone they don't like,
too many addresses in To: or particularly Bcc: Or for some reason
your address or ISP has been blacklisted.

You should forward your message to support @ both your ISP and
chenevert and ask them why.

Also - do you realise that you posted on this newsgroup the email
address of the person at chevernet.net that you were trying to email?
As a result, that person will probably receive a ton of spam!!

John Allen