Thank you. Didn't know that and sounds very useful. Marius.
-----Original Message----- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Wietse Venema Sent: Tuesday, February 23, 2016 11:46 PM To: Postfix users Subject: Re: Feature request - blacklist check for NS Marius Gologan: > Hi Wietse, > > No, I don't mean the local files. Local files are effective for local > admins, not for the world nor a community. > > The mechanisms I have in mind are similar to: > reject_rhsbl_reverse_client > reject_rhsbl_sender > reject_rbl_client > but for the corresponded Name servers (names and IPs). You could use check_mumble_ns_access with a tcp_table. Postfix will send the DNS server's name and IP address(es) to the tcp_table, and your TCP server could do the DNSBL query. man 5 tcp_table Wietse
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