SPF, DKIM and DMARC email checker
Check a domain’s SPF, DKIM, DMARC and MX records, inspect recursive SPF lookup terms and get provider setup guidance.
- Free, no account needed
- DNS records only
- 10-minute cache
- Provider guidance
How to use it
- 1.Enter a domain or email address and optional DKIM selectors.
- 2.Check the published mail configuration and review each finding.
- 3.Use your mail provider’s instructions, make changes and check again.
How people use it
A café discovers that its DMARC policy is still in monitoring mode.
What it won’t do
DNS configuration does not prove inbox placement, sender reputation or message authentication. DKIM keys may use selectors this tool has not checked.
Questions
Does it send a test email?
No. It performs DNS lookups only.
Why can DKIM look missing?
DKIM selectors vary. Add the selector from your provider or a signed message.
Will Check again show changes immediately?
Results are cached for ten minutes. DNS propagation and resolver caches can take longer.
Where is my work saved?
Inputs and supported files are saved in this browser for up to seven days when storage is available. Clearing site data removes them. Download important work and keep your original files.
Does this start an Automyc trial?
No. Using a free tool, or making a free account from one, doesn’t start a paid trial or create a workspace.

