* Try telnet to port 25 on your server, and type the following SMTP commands:
=== START ===
helo testrelay
mail from:<spammer@some.where>
rcpt to:<who.cares@out.there>
data
TEST1
.
quit
=== END ===
(Include the blank lines and the dot!!)
* You should block relay in the SMTP protocol properties in ESM.
* Now try again, you should get a response from the server that relay is not allowed.
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