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Barracuda Reputation Lookup vs MXToolbox Blacklist Check: catalog facts
Barracuda Reputation Lookup	MXToolbox Blacklist Check
Free Free to use online.	Free The blacklist check is free to use on the website.
Web	Web
Direct check against the list Barracuda firewalls use Removal request form on the same site	Checks over 100 DNSBLs in one pass Accepts an IP address or a domain
Covers only Barracuda's own reputation list Useful mainly for mail server operators	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 24, 2026	Official website Full listing and sources Checked September 23, 2026

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