DKIM Validator vs Mail Tester: catalog facts
 DKIM Validator |  Mail Tester |
|---|
|
Free Free to use. |
Free Running a test from the website is free. |
|
Web |
Web |
- DKIM, SPF and SpamAssassin results in one place
- Tests real mail flow rather than just DNS records
|
- No setup beyond sending one email to a given address
- Simple score out of 10 that is easy to read
|
- Test messages are stored on a third-party server
- Only checks messages you send to it
|
- Tests a single message rather than ongoing deliverability
- Little detail on the homepage about what each check covers
|
|
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 |
Checked September 24, 2026 | Checked September 23, 2026 |
Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.
Copy comparison link
