Verify any email instantly — Gmail, iCloud, QQ, Yahoo and 50+ providers.
Powered by direct API checks, not SMTP guessing.
Not just SMTP checks. Provider-specific APIs, browser fingerprinting, and direct integration for maximum accuracy.
Direct calls to Gmail, Yahoo, iCloud, QQ and more. No SMTP guessing — real provider data every time.
Automated CAPTCHA solving for providers like iCloud and GMX. Fully hands-off verification pipeline.
Rotating residential IPs prevent rate limiting and ensure consistent results from any provider worldwide.
Every result includes a 0–100 confidence score, verification method, and detailed breakdown of each check.
Upload CSV files and verify thousands of emails in parallel. Get results in minutes, not hours.
Simple JSON API with API key auth. Integrate email verification into any app in minutes.
| Provider | Method | Speed | Accuracy |
|---|
Credits never expire. Pay with USDT TRC20 — no card needed.
Every new account gets 100 free credits — no payment needed to start.
Why pay $0.01 per check when you can verify 20,000 emails for $79? No subscriptions, no nonsense.
| Feature | CheckMail1 | ZeroBounce | NeverBounce | Hunter.io |
|---|---|---|---|---|
| Price per 1,000 checks | $3.95 | $16+ | $8+ | $49+/mo |
| Credits expire? | Never | Monthly | Monthly | Monthly |
| Gmail / Google Workspace | Direct API | SMTP only | SMTP only | Limited |
| Yahoo / iCloud / QQ / Naver | All verified | Partial | Partial | No |
| Bulk CSV upload | Up to 1M rows | Yes | Yes | Limited |
| REST API access | Free tier | Yes | Yes | Yes |
| No credit card required | USDT payment | Card required | Card required | Card required |
CheckMail1 uses Google's own Account Lookup API — the same one used by Google's password recovery flow. Unlike SMTP-based verifiers that always return "unknown" for Gmail, we get a definitive answer: the account either exists or it doesn't.
Yes. Most email verifiers return "unknown" for iCloud addresses because Apple blocks SMTP probing. CheckMail1 uses Apple's Account Validation API to definitively check whether an Apple ID or iCloud address exists.
Never. Credits you purchase stay in your account indefinitely. No monthly subscription, no forced renewal. Buy once, use whenever you need.
150+ providers with direct verification for Gmail, Yahoo, iCloud, Outlook/Microsoft 365, QQ Mail, Naver, Yandex, Mail.ru, NetEase (163/126), ProtonMail, and GMX. All other domains use SMTP verification.
We currently accept USDT (TRC-20 on Tron network). No credit card required. After sending USDT to our wallet, your credits are added automatically within minutes.
Every new account gets 100 free verification credits that never expire. The homepage demo (no account required) uses a simplified syntax+MX check. Creating a free account unlocks full provider-level verification accuracy.
100 free verifications every month. No credit card required.