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MillionVerifier vs Reoon, and the better choice

How MillionVerifier and Reoon compare on what you get per credit, and why RocketVerifier beats both on cost per usable result, catch-all verdicts, speed and AI tooling.

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Side by side

MillionVerifier, Reoon and RocketVerifier

Each vendor's terms from its own published pages, with RocketVerifier alongside.

MillionVerifier, Reoon and RocketVerifier compared
Compare MillionVerifier Reoon RocketVerifier
Unknown results Its terms call free unknowns a discretionary goodwill programme: for bulk files, credits may be deducted and returned as promotional credits. Unknown results are not charged. Never charged, and duplicates in a list are free too
Bounce refunds A money-back guarantee you claim if more than 4% of OK addresses hard-bounce, for file uploads mailed within 7 days. No bounce guarantee is published. Automatic: every hard bounce on a deliverable result is refunded within 30 days when you connect SendGrid, Mailgun, Amazon SES or Postmark
Catch-all addresses Catch-all verification is included; unresolved addresses are labelled risky. Catch-all addresses are flagged at 1 credit, with no send verdict. Every one scored 0 to 100 with a send_safe, send_with_caution or avoid verdict, in the standard 1 credit
Real-time speed A "sub-second" real-time API. Quick mode within 0.5 seconds; Power mode from a few seconds to over a minute. Typically under 400ms, or 1 to 3 seconds with a live SMTP check
MCP server for AI agents No MCP server is listed on MillionVerifier's site. No MCP server is listed on Reoon's site. Hosted MCP server for Claude, ChatGPT, Cursor and any MCP client, plus a local npm package
OAuth for third-party apps No OAuth app platform for third-party developers is published on MillionVerifier's site. No OAuth app platform for third-party developers is published on Reoon's site. RocketVerifier Connect: apps connect in one click and verify on the user's own credits
Credit expiry Credits never expire. Purchased credits never expire; unused daily credits do not carry over. Pay-as-you-go credits never expire, and plan credits roll over
Developer API Single and bulk APIs with test keys and code samples; no official SDK or webhooks documented. Single and bulk endpoints; no webhooks, SDKs or sandbox documented. REST and bulk APIs, signed webhooks, Node.js and Python SDKs, a CLI and free sandbox keys
Form protection No form widget; real-time form checks are built on the API. A WordPress plugin; no JavaScript form widget. RocketShield, included on every plan
SPF, DKIM and DMARC No SPF, DKIM or DMARC tools are listed. No SPF, DKIM or DMARC tools are listed. Free lookups plus deliverability monitors with alerts, included

In short

MillionVerifier vs Reoon at a glance

What each one is, and how RocketVerifier compares head to head.

MillionVerifier

MillionVerifier is a bulk email verification service with a real-time API, sold on pay-as-you-go credits.

RocketVerifier vs MillionVerifier

Reoon

Reoon Email Verifier is a bulk email verification service with a real-time API and a WordPress plugin.

RocketVerifier vs Reoon

The better choice

Why RocketVerifier beats MillionVerifier and Reoon

99.5% accuracy, the fastest real-time API, a reason behind every result and every feature on every plan.

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  • Pay only for usable results

    Unknown results and duplicate addresses are never charged. Connect your sending platform and every hard bounce on an address we marked deliverable is refunded automatically.

  • A verdict on every catch-all

    Accept-all addresses get send_safe, send_with_caution or avoid, included in the standard 1 credit.

  • The fastest real-time API

    Typically under 400ms, 1 to 3 seconds with a live SMTP check, and up to 100,000 emails per hour in bulk.

  • Built for AI agents

    A hosted MCP server for Claude, ChatGPT and Cursor, plus RocketVerifier Connect OAuth for third-party apps.

  • Credits never expire

    Pay-as-you-go credits stay until you use them. Monthly and yearly plans roll unused credits over.

  • Integrations included

    HubSpot, Salesforce, Mailchimp, Instantly, Smartlead, Zapier, Make, n8n and more on every plan.

FAQ

MillionVerifier vs Reoon FAQ

What is the difference between MillionVerifier and Reoon?

MillionVerifier is a bulk email verification service with a real-time API, sold on pay-as-you-go credits. Reoon Email Verifier is a bulk email verification service with a real-time API and a WordPress plugin.

Do MillionVerifier and Reoon charge for unknown results?

MillionVerifier: Its terms call free unknowns a discretionary goodwill programme: for bulk files, credits may be deducted and returned as promotional credits. Reoon: Unknown results are not charged. RocketVerifier never charges for unknown results or duplicates.

How do MillionVerifier and Reoon handle catch-all addresses?

MillionVerifier: Catch-all verification is included; unresolved addresses are labelled risky. Reoon: Catch-all addresses are flagged at 1 credit, with no send verdict. RocketVerifier scores every catch-all address and returns send_safe, send_with_caution or avoid in the standard 1 credit.

What is the best alternative to MillionVerifier and Reoon?

RocketVerifier. It verifies with 99.5% accuracy, answers in real time in typically under 400ms, never charges for unknowns, refunds bounces automatically when you connect your sending platform, and includes RocketShield, an MCP server and every integration on every plan. Sign up and get 100 free verification credits instantly. No credit card required.

Vendor facts from each vendor's own published pages, checked November 1, 2026. Sources: MillionVerifier, Reoon.

Try the better choice on your own list

Verify a real sample and see the difference. Unknowns are free, bounces are refunded and credits never expire.

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100 free credits · No card required · Credits never expire