MillionVerifier Alternative:
RocketVerifier
Stop losing 30-40% of your list to "unknown" catch-alls. RocketVerifier resolves them, explains every verdict, and speaks fluent AI-agent.
Key Advantage: We Resolve What They Punt On
6 Reasons to Switch from MillionVerifier
We Score Catch-Alls Instead of Punting
MillionVerifier marks catch-all domains "unknown" and doesn't charge for them - which sounds nice until you realize it means they simply can't tell you anything. RocketVerifier resolves a send-safe verdict for the majority of catch-alls using pattern + reputation scoring.
See Why, Not Just What
Every verification ships an evidence trail (syntax, MX, SMTP, catch-all confidence) instead of a black-box verdict. Useful for QA, compliance, and debugging edge cases.
20x Faster API
Our cached/no-SMTP responses return in under 50ms; MillionVerifier's API can take up to a second per lookup, which adds up fast in real-time signup forms.
Block Bad Emails Before They Hit Your List
RocketShield, RocketVerifier's real-time form widget, rejects disposable/invalid/catch-all addresses at signup or checkout - before they ever reach your database. MillionVerifier has no equivalent; you're stuck cleaning up after the fact.
Deliverability Monitoring, Not Just One-Off Checks
RocketVerifier continuously monitors SPF/DKIM/DMARC and blacklist status and re-verifies aging lists automatically - MillionVerifier is a one-off checker.
Built for Agents, Not Just Humans
A native MCP server and CLI mean AI SDRs and automated pipelines can verify emails without a human touching a dashboard - increasingly how outbound gets built in 2026.
RocketVerifier vs MillionVerifier
| Feature | RocketVerifier | MillionVerifier |
|---|---|---|
| Price per 100K emails | $400 | $389 |
| Price per 1M emails | $2,000 | $2,290 |
| Catch-all resolution | Scored + send-safe segment | Flags as "unknown", no charge |
| Explainable evidence trail | Yes (per-signal) | No |
| Accuracy Rate | 99.5% | 99% |
| API Response Time | <50ms | <1s |
| Credits Expire | Never | Never |
| Free trial credits | 100 (card verified, no charge) | 100 |
| MCP server / AI agent tools | Yes | No |
| SPF/DKIM/DMARC monitoring | Yes (continuous) | No |
| Real-time form widget | Yes (RocketShield) | No |
| Zapier / Make / n8n | Yes | Yes |
Comparable Pricing, More Usable Data
MillionVerifier is marginally cheaper at low volume - but every "unknown" catch-all is a wasted lookup. RocketVerifier resolves most of them, so your effective cost per usable result is lower.
| Email Volume | RocketVerifier | MillionVerifier | Difference |
|---|---|---|---|
| 10,000 emails | $60 | $52 | -$8 |
| 50,000 emails | $250 | $229 | -$21 |
| 100,000 emails | $400 | $389 | -$11 |
| 500,000 emails | $1,250 | $1,390 | $140 |
| 1,000,000 emails | $2,000 | $2,290 | $290 |
What Switchers Say
"MillionVerifier kept telling us our catch-all domains were 'unknown' - which is technically true but useless. RocketVerifier actually resolves most of them."
"The evidence trail sold us. When a client asks why an email bounced, we can actually show them instead of shrugging."
"We plugged the MCP server into our AI SDR pipeline in an afternoon. MillionVerifier just doesn't have an answer for agent workflows yet."
Common Questions
Is RocketVerifier cheaper than MillionVerifier?
It depends on volume - MillionVerifier's headline per-100K price is slightly lower, but RocketVerifier resolves far more catch-alls to a usable verdict instead of marking them unknown, so you get more usable data per dollar spent, and pricing is cheaper at the 1M+ tier.
What does "catch-all resolution" actually mean?
A catch-all domain accepts mail to any address, so a standard SMTP check can't tell if a specific mailbox exists. RocketVerifier combines naming-pattern plausibility, domain reputation, and historical signals to produce a confidence-scored send-safe verdict instead of leaving it as "unknown" - MillionVerifier does not attempt this.
Does RocketVerifier have an MCP server like an AI agent would need?
Yes - RocketVerifier ships a hardened MCP server and CLI so AI SDR tools, Clay, n8n, and other agent pipelines can verify emails natively. MillionVerifier does not offer this.
How easy is it to switch from MillionVerifier?
Straightforward - sign up, grab an API key, and swap the endpoint. The request/response shape is similar enough that most integrations take under an hour to migrate.
Ready to Stop Losing Catch-Alls?
Get a real verdict on the domains MillionVerifier calls "unknown." Start free today.