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MXToolbox vs MXToolbox Blacklist Check: catalog facts
MXToolbox	MXToolbox Blacklist Check
Freemium Lookups on the site are free to use, with paid plans offered alongside.	Free The blacklist check is free to use on the website.
Web	Web
Many email and DNS checks in one place MX lookups query the authoritative server directly	Checks over 100 DNSBLs in one pass Accepts an IP address or a domain
Pages carry prompts for the paid service Each check runs separately rather than as one combined report	Covers fewer lists than some dedicated multi-RBL tools Shows listings but does not remove them
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.