# telnet yourdomainname,com/xxx.xxx.xxx.xx 25
helo client.server.com
mail from: xxx@somedomain.com
rcpt to: yyy@somedomain.com
If you are getting the error “554 : Relay access denied” then the server is not an openRelay
If not Just pass the command “DATA” sfter the recipient and then enter the message ending with a period ie : “.”
If you get the reply “SUCCESS Relay Accepted – final response code 550?
Then as you feared your server is subjected to open relay and if not enjoy………. It is not
I hope your server is not open relay supporting, but if it is so, as it is a Cpanel Server you can stop it normally using the below scripts
# /scripts/fixrelayd
# /etc/rc.d/init.d/antirelayd restart
# service exim restart
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