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Multi-RBL Check

Free multi-DNSBL and FCrDNS check for mail servers

Description

Free mail-server reputation checker that takes an IPv4/IPv6 address or domain name and queries it against a large set of DNS blacklists and whitelists simultaneously, while also running FCrDNS (forward-confirmed reverse DNS) and WHOIS checks. Used by mail administrators to confirm sending infrastructure is not blacklisted.

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