MxToolbox alternatives
6 tools in the catalogue cover the same ground as MxToolbox and can replace it depending on the need. Each one is reachable, re-checked daily, and listed with its pricing.
- Blacklist CheckerfreemiumChecks an IP, domain or address against the main blocklists, with an explanation of each listing.
- Spamhaus CheckfreeChecks an address, domain or IP against the Spamhaus blocklists, the reference in the field. A listing says a lot about a sender's reputation.
- MultirblfreeQueries more than a hundred blocklists at once for one IP or domain, and shows which ones list it and why.
- breach.vipfreeFree database search engine providing access to 1000+ breach databases for research, email searching, and analysis of compromised credentials.
- BreachDirectoryfreeFree breach data API and search engine covering 11B+ leaked records from 2,000+ breaches, with plaintext password exposure checks and SHA-1 hash lookups.
- Burner Email Providers (T)freeCurated list of temporary email service domains with API references and detection library implementations across multiple languages.
MxToolbox
Email Address
Also written Mx Toolbox
Email deliverability diagnostics tool that checks MX records, SPF, DKIM, DMARC configuration, and server health to prevent email delivery issues.
RECOMMENDED USE
Email server diagnostics, deliverability testing, DNS validation
Launch MxToolbox directly
Enter your target: the link opens with the query already filled in. Nothing is sent from this site.
Expected input: domaine
When to use this tool
MxToolbox comes into play at these investigation steps, depending on your starting point.
- Collectionstarting point: email address · step 5 of 7
Analyse the address domain
The "exemple.com" domain shows whether this is a consumer provider, a company, or a disposable domain.
- Collectionstarting point: domain or website · step 3 of 7
Map DNS and subdomains
Subdomains expose staging, admin environments and forgotten services.
Information
Video tutorials
Learn to use MxToolbox
Suggested workflow
Chain these tools in order for a complete investigation
Combine with
These tools work great together
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Emailable
Email AddressEmail verification API that checks deliverability, MX records, and syntax validity for any address. Returns detailed bounce risk and mailbox existence confidence.
Email Address Validator
Email AddressDetailed validation of an address: syntax, domain, mail server, disposable-address detection and catch-all configuration.
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