MultiRBL

A free tool that checks a mail server IP against over 200 DNS blacklists and whitelists.

FreeProprietaryWeb

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About MultiRBL

MultiRBL checks an IPv4 or IPv6 address, or a domain name, against more than 200 DNS blacklists and whitelists at once. It also runs a forward-confirmed reverse DNS (FCrDNS) check, which many receiving mail servers expect to pass.

The site includes a Whois lookup, information pages about every list it checks, and a test by sending an email. Entries in the neutral lists are informational only. The site does not handle removal requests, so it suits mail administrators who can contact the list operators themselves.

Strengths

  • Checks over 200 blacklists and whitelists
  • Supports IPv4 and IPv6
  • Includes FCrDNS and Whois checks
  • Information pages for every list checked

Limitations

  • No help with removal requests
  • Plain interface with lots of technical output

Details

Pricing
FreeFree to use, with optional Bitcoin donations.
License
Proprietary
Developer
valli.org
Platforms
Web
How it runs
Web application
Account
Not required
Works offline
No
Best suited for
Mail administrators checking a sending server's reputation
Last verified
Added
Provenance
Selected from the TechWalrus Resource Hub (Website Checkers & Audit Tools); facts checked against the developer's own pages, 2 sources on file.

Report a wrong fact or a dead link on this listing