Mailthentic vs Mailfloss
An automated list-cleaning tool that connects to your ESP.
Mailfloss focuses on automated cleaning inside your email platform. Mailthentic offers the same hands-off cleaning plus full DNS authentication checks and a verification API, with credits that never expire.
Feature Comparison
Every feature, side by side. No marketing fluff.
| Feature | Mailthentic | Mailfloss |
|---|---|---|
| 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 | Mailfloss |
|---|---|---|
| 1,000 verifications | $5.00 | Plan-based |
| 5,000 verifications | $19.00 | Plan-based |
| 25,000 verifications | $69.00 | Plan-based |
Pricing as of June 2026. Mailthentic pay-as-you-go credits never expire. See full pricing
Why Teams Choose Mailthentic
-
SPF, DKIM and DMARC checks on every address
-
Domain health scoring with recommendations
-
Pay-as-you-go credits that never expire
-
Free public email checker, no signup required
-
REST API for real-time verification
-
OAuth CRM integrations beyond ESP cleaning
Where Mailfloss Excels
We believe in honest comparisons. Here is where Mailfloss has advantages:
-
Set-and-forget ESP automation
-
Typo correction features
-
Simple monthly plans
Mailthentic Is Ideal For...
Teams that want automated cleaning plus DNS authentication checks, an API and non-expiring credits rather than ESP-only automation.
Frequently asked questions
Is Mailthentic a good Mailfloss alternative?
Does Mailthentic connect to my email platform?
Ready to try a better alternative?
Start with 1,000 free verification credits. No credit card required. See the difference for yourself.