What is a DNS blacklist?
Domain Name System-based Blackhole List, or DNSBL, is a spam-prevention technique. It tracks IP addresses that send spam and publish a "blacklist" of addresses linked to spamming. Most mail servers can be configured to reject or flag messages which have been sent from a site listed on one or more DNSBLs. If your mail servers are added to a DNSBL database, it can cause other companies to deny email delivery from those servers.
Features:
- Unlimited RBL lists, 250+
- Unlimited IPv4/IPv6/Domains check
- High performance check engine.
- Scheduled/manual scan.
- Email notification.
- Detailed statistics.
- User friendly interface.
- Support PHP 5/7
- Support WHMCS V6/7