relay not allowed

I have exchange 2003 in an AD enviroment.  I am trying to send out an e-mail from a POP account (not through exchange just using outlook) I set up in Outlook.  I get an error saying 550 relaying mail to ......... not allowed.  This happens when I send to any mail address with this POP account.  I can recieve mail but can't send.  I there a policy setting in exchange I need to set up?
bwalker9Asked:
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susanzeiglerConnect With a Mentor Commented:
What SMTP server did you specify for the pop account you set up n Outlook? That is the server which is rejecting your messages. It could be due to a number of reasons. You could set up Exchange to allow relaying of messages for that pop account, but there might be other solutions.
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InteraXCommented:
Hi bwalker9,

I would setup the SMTP connection to use authentication and then make sure you "allow all computers that successfully authenticate to relay".

http://www.amset.info/exchange/smtp-relaysecure.asp

Good Luck,

Chris
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