Email verification · comparison
MillionVerifier alternative
Cheaper still: run it yourself and read the code.
What MillionVerifier is
Low-cost bulk email verification, priced aggressively per address with credits that do not expire.
Price and simplicity for one-off bulk cleans. If you have a 200,000 row list and want it cleaned once, they are hard to beat on cost.
Pick MillionVerifier when: One large list, one time, no infrastructure. That is a good trade.
Verification is continuous rather than occasional, or the list cannot leave your environment.
Side by side
| MillionVerifier | Verdict | |
|---|---|---|
| Cost model | Per address, credits | Free self-hosted, or flat hosted |
| Your list | Uploaded | Stays local |
| Evidence | Label | Server reply, quoted |
| Automation | API and dashboard | CLI, Python API and MCP server |
MillionVerifier sells non-expiring credit packs. Free and MIT, or $59/mo hosted.
The honest summary
Verdict has no contact database and does not send campaigns. It opens an SMTP connection to the receiving server, asks whether the mailbox exists, and reports what the server said. When the server refuses to answer, or the domain accepts every address, it says so instead of guessing. That is the whole product, it is MIT licensed, and it runs on your own machine so the list never goes anywhere.
Try it on a real list
Paste up to 500 addresses. Free, no signup, nothing stored. The fairest test is your last campaign's bounce list, since you already know which ones failed.