troubleshooting Question

Securing SMTP on Exchange 2007

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CaringITFlag for United Kingdom of Great Britain and Northern Ireland asked on
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Our Exchange server is sitting on our network and has SMTP open on the firewall - but it is allowing anonymous sending of emails.  We have stopped relaying via SMTP, but need to know how to stop this issue.

Can anyone help?
ASKER CERTIFIED SOLUTION
Raheem05

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