Is there any way to restrict Qmail to accept incoming mail from only a whitelist of certain IPs, but only some domains, while leaving all other domains able to receive mail from all IPs?
So far, all I've been able to find is the unanswered "open discussion" post at the bottom of http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Qmail/Q_22941108.html?sfQueryTermInfo=1+filter
Qmail is running as a back-end for Plesk, if that's important.
Thank you for any help.
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