02Community answers1 response
Single-provider validation is unreliable. Different providers have different strengths.
Provider comparison (community feedback):
| Provider | Strengths | Weaknesses | Cost |
|---|---|---|---|
| ZeroBounce | Good accuracy, fast | Expensive at scale | $0.008/email |
| MillionVerifier | Cheap, good catch-all detection | Slower | $0.0004/email |
| NeverBounce | Fast, good API | High false positive rate (13%+ bounces reported) | $0.008/email |
| Findymail | Validates during enrichment | Can miss some invalids | Included in enrichment |
| LeadMagic | Good accuracy | Can be expensive at scale | $0.01/email |
Recommended strategies:
- For cold email campaigns (strict): Use ZeroBounce + MillionVerifier together (both must pass), reject catch-alls
- For CRM enrichment (moderate): Single provider (ZeroBounce), accept catch-alls for nurture
- For budget-conscious: MillionVerifier alone, reject catch-alls
GTM StackCommunity insight