How can I tell which of our users are using our SMTP server to
send mail as opposed to their own ISP's mail server? I can see
in the logs when connections are made to the server but I don't
know how to differentiate between:
1) a user directly connecting from there mail client
and
2) mail being relayed from another mail server
I would like to enforce user authentication for those who want to
send from our server. Does this affect other mail servers
connecting to our server with mail for our users?
---------------------
Dermot Keenan
[EMAIL PROTECTED]
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