# 4 Mail Security Tools alternatives in 2026

Last updated: November 10, 2026.

The best alternatives to Mail Security Tools for email verification APIs: pingutil, Validemail.co and looot, by our benchmark. Mail Security Tools's website is mailsecuritytools.com.

## Email verification API alternatives

[pingutil](https://datacircle.dev/validate-email-apis/pingutil/free-api-key-post-v1-verify), [Validemail.co](https://datacircle.dev/validate-email-apis/validemail-co/free-get-api-v1-validate#9-90-monthly-9-90-month-get-api-v1-validate) and [looot](https://datacircle.dev/validate-email-apis/looot/top-up) are the best [email verification API providers](https://datacircle.dev/best-email-verification-api) in the Datacircle benchmark.

On our [Mail Security Tools plan pages](https://datacircle.dev/validate-email-apis/mail-security-tools/pay-as-you-go), we compare each Mail Security Tools plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 emails first.

- [Catch-all Verifier, $25 pack, 2,500 Credits, POST /api/v1/verify/single](https://datacircle.dev/validate-email-apis/catch-all-verifier/free-trial-post-api-v1-verify-single#25-pack-2500-credits-post-api-v1-verify-single): $10.00 per 1,000 emails
- [Clearout, $1,000 pack, 500,000 credits, POST /email_verify/instant, Instant Verify, full](https://datacircle.dev/validate-email-apis/clearout/free-freemium-post-email-verify-instant-instant-verify-full#1000-pack-500000-credits-post-email-verify-instant-instant-verify-full): $10.00 per 1,000 emails
- [InboxPolicy, pay as you go, Pay-per-call (x402), POST /v1/decide](https://datacircle.dev/validate-email-apis/inboxpolicy/pay-as-you-go-pay-per-call-x402-post-v1-decide): $10.00 per 1,000 emails
- [Tuski, pay as you go](https://datacircle.dev/validate-email-apis/tuski/pay-as-you-go): $10.00 per 1,000 emails

Compare every email verification API plan: [Email verification API pricing: free and cheapest plans compared](https://datacircle.dev/email-verification-api-pricing)

## See also

- [Catch-all Verifier alternatives](https://datacircle.dev/catch-all-verifier-alternatives)
- [Clearout alternatives](https://datacircle.dev/clearout-alternatives)
- [InboxPolicy alternatives](https://datacircle.dev/inboxpolicy-alternatives)
- [Tuski alternatives](https://datacircle.dev/tuski-alternatives)