Cheaper than one campaign in the spam folder
Checks are free and always will be. You pay when you want the daily re-check and the alert that arrives before anyone asks why replies dried up.

No signup, no history.
Check a domain
10 domains, re-checked daily.
No credit card required for the trial.

50 domains, one dashboard.
No credit card required for the trial.
Why the price is per plan, not per email volume
Most DMARC products price by how many messages you send, because they parse every aggregate report and the cost grows with volume. MailAuthWatch watches the DNS records themselves, which costs the same whether a domain sends ten messages a day or ten million. So the only thing that scales is how many domains you watch, and that is the only thing you pay for: $29 covers 10 domains, $79 covers 50. Per domain, that is well under what volume-priced tools charge for two.
Cancel any time from the billing portal. No call with anyone. Secure checkout by Stripe; you are logged in automatically after paying and youtube.com will be pre-filled.
Questions
Do you read my email or connect to my mail server?
No. Everything is measured from public DNS. Nothing is sent to or through your mail systems.
Is this a DMARC report analyser?
No. Report analysers tell you what happened last week. MailAuthWatch tells you the moment your DNS records stop being correct, which is what causes most of what those reports show.
What can a DNS-only check not tell me?
Whether a given sending service is actually signing with the key it published, or which unknown sources are sending as you. Only DMARC aggregate reports show that. MailAuthWatch watches the records those reports depend on; pair it with any report analyser if you need the per-source view.
Is there a free trial?
Yes. Both paid plans start with a 14-day trial that needs no card. If you add a card and later decide it was not worth it, the 30-day money-back guarantee applies.
Can I cancel?
Yes, from the billing portal in your account, effective at the end of the current period.