Honest Comparison (2026)
Mailthentic vs MailboxValidator
An email validation service with bulk and API options.
MailboxValidator offers solid bulk and real-time validation. Mailthentic adds SPF, DKIM and DMARC checks and domain health scoring on every address, with non-expiring pay-as-you-go credits.
Feature Comparison
Every feature, side by side. No marketing fluff.
| Feature | Mailthentic | MailboxValidator |
|---|---|---|
| REST API | ✓ | ✓ |
| Bulk list cleaning | ✓ | ✓ |
| Email verification | ✓ | ✓ |
| SMTP mailbox check | ✓ | ✓ |
| Catch-all detection | ✓ | ✓ |
| Credits never expire | ✓ | ✗ |
| Role-based detection | ✓ | ✓ |
| Domain health scoring | ✓ | ✗ |
| Pay-as-you-go credits | ✓ | ✓ |
| Free credits on signup | 100 | 100 |
| CRM integrations (OAuth) | ✓ | ✓ |
| SPF / DKIM / DMARC check | ✓ | ✗ |
| Disposable email detection | ✓ | ✓ |
| Free email checker (no signup) | ✓ | ✗ |
Pricing Comparison
Transparent pricing, no hidden fees.
| Volume | Mailthentic | MailboxValidator |
|---|---|---|
| 1,000 verifications | $5.00 | $9.00 |
| 5,000 verifications | $19.00 | $36.00 |
| 25,000 verifications | $69.00 | $150.00 |
Pricing as of June 2026. Mailthentic pay-as-you-go credits never expire. See full pricing
Why Teams Choose Mailthentic
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Lower cost per verification on standard tiers
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SPF, DKIM and DMARC checks on every address
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Domain health scoring with recommendations
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Free public email checker, no signup required
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Credits never expire
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9-point engine with greylisting retry and catch-all detection
Where MailboxValidator Excels
We believe in honest comparisons. Here is where MailboxValidator has advantages:
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Established API and SDKs
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Bulk and single validation
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Additional data lookup add-ons
Mailthentic Is Ideal For...
Teams that want validation accuracy with DNS authentication checks included and credits that do not expire.
Frequently asked questions
Is Mailthentic a good MailboxValidator alternative?
Yes. Mailthentic matches MailboxValidator on validation accuracy and adds SPF, DKIM and DMARC checks plus domain health scoring on every address, usually at a lower price.
Can I verify in real time and in bulk?
Yes. Use the REST API for real-time checks or the bulk verifier for whole lists, both with full DNS authentication checks.
Ready to try a better alternative?
Start with 1,000 free verification credits. No credit card required. See the difference for yourself.