🧾TL;DR — Quick Comparison
| Feature | Mailgun Verify | Lero |
|---|---|---|
| 🕒 Speed | ~300ms–1s | <50ms realtime |
| 🎯 Accuracy | ~90–92% | 97.3% audited |
| 💰 Pricing | $1 per 100 emails | From $0.0003/email |
| 🔌 Integration | API only | API + bulk CSV, webhook-ready |
| 🧪 Catch-All Detection | Limited | Yes |
| 🛡️ Greylisting Handling | No | Yes |
| 🔒 Data Retention | Logs stored (Mailgun logs) | Privacy-first, no retention |
| 🆓 Free Credits | None | 500 free validations |
🚨What Most Users Don't Realize About Mailgun Verify
Mailgun's email validation is a side-feature, not their main product.
It works OK for basic syntax and MX checks, but lacks:
If you're using it "because it's included," you're paying with lower accuracy and more bounces.
🧠Why Founders Switch to Lero
Lero was built by a founder frustrated with bounce rates and verification tools that:
- Were too slow
- Missed temporary inboxes
- Didn't justify their price
So we built Lero:
And zero fluff.
🔬Accuracy Test (2025 Internal Audit)
We tested both Lero and Mailgun on a mixed 10k real-world email sample.
| Type | Mailgun Accuracy | Lero Accuracy |
|---|---|---|
| Valid inboxes | 90.2% | 97.3% |
| Catch-all domains | Missed 60% | Flagged 92% |
| Temporarily greylisted | 17% failed | Passed with retry |
| Disposable addresses | Partial | Blocked 99% |
Download it here →
🔌Dev-Friendly, Not Dev-Heavy
Mailgun's validation API only works inside the Mailgun ecosystem.
Lero?
No Mailgun dependency
POST /validate
{
"email": "user@example.com"
}💸Price Comparison: Mailgun vs. Lero
$1 per 100 emails → $0.01/email
From $0.0003/email → over 30x cheaper
Whether you validate 10 or 10M, Lero saves money and time.
🎯Final Verdict: Use Lero If…
You:
Mailgun is fine as a backup tool.
But if deliverability is part of your growth strategy, you need Lero.
🎁 Try Lero Now (500 Free Validations)
📎Related Articles
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