MXToolbox DKIM Lookup

A free web tool that tests whether a domain publishes a valid DKIM public key for a selector.

FreeProprietaryWeb

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About MXToolbox DKIM Lookup

MXToolbox DKIM Lookup retrieves the DKIM public key record for a domain and selector and reports whether it is valid. Input can be given as domain:selector, such as mxtoolbox.com:email, or in the full host format selector._domainkey.domain.

It suits email administrators confirming that DKIM is published correctly after configuring a mail service, and anyone diagnosing delivery problems caused by failing signatures. It is one of many email and DNS checks on the MxToolbox site.

Strengths

  • Accepts two input formats for domain and selector
  • Explains how DKIM record lookups work on the page
  • Part of a wider set of email diagnostics

Limitations

  • You need to know the selector in advance
  • Tests the published key only, not a signed message

Details

Pricing
FreeThe DKIM lookup is free to use on the website.
License
Proprietary
Developer
MxToolbox
Platforms
Web
How it runs
Web application
Account
Not required
Works offline
No
Best suited for
Checking a DKIM record while troubleshooting email delivery
Categories
Website testing
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