I need to grant relay to 127.0.0.1 but it is being exploited by spammers on my server to send mail and I cant block 127.0.0.1 relay because it is used for legitimate users on the server.
MailEnable does not check if the domain is owned by server before sending e-mails, so spammers can send e-mails with an account like firstname.lastname@example.org.
I need to create a MTA pick-event script that blocks all incoming mail from 127.0.0.1 that is sent from a domain not owned by the server.
Can someone post the entire script to do this as I am unexperienced user on script creation?
Thanks for help,
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