MillionVerifier: how it works, and the alternatives
MillionVerifier is popular with cold emailers because it is cheap at volume and its credits never expire. Here is the fine print, and when something else fits better.
MillionVerifier sells one-off credit packs that never expire (50,000 credits cost $89) and charges only for Ok, Invalid and Disposable results, so catch-all and unknown results are free. It gives 100 free credits and refunds your last payment if your hard-bounce rate tops 4%, under strict conditions. Alternatives: NeverBounce for integrations, ZeroBounce for detail, Veml for small lists with no account.
How MillionVerifier charges
- One-off packs only. No subscription. The pricing slider starts at 10,000 credits, and 50,000 credits cost $89.
- Credits never expire.
- You pay only for Ok, Invalid and Disposable results. Catch-all and Unknown, which it groups as "risky", are not charged.
- 100 free credits, no card needed.
Prices and limits were checked on the companies' own pricing and help pages in October 2026. They change, so confirm on the vendor's site before you buy.
The 4% refund guarantee, and its conditions
MillionVerifier refunds your last payment if your hard-bounce rate goes above 4%, but only if:
- you send only to addresses marked Ok,
- within 7 days of verifying,
- the list was checked by file upload (not single API checks),
- you use a professional sending service with detailed bounce reports, and
- you give them access to that account to confirm.
Alternatives
| Tool | Best for | How you pay |
|---|---|---|
| NeverBounce | CRM and email-platform integrations; 3% guarantee | $8 per 1,000, or $49/mo |
| ZeroBounce | Most detailed results (spam traps, abuse) | From $39 for 2,000, or from $99/mo |
| EmailHippo | Very large files, risk-scoring APIs | About $9.88 per 1,000, or subscription |
| Veml | Smaller lists, no account, one payment | $3 for 1,000, $19 for 10,000 |
Veml and EmailNa have the same owner. Unlike MillionVerifier, Veml charges for every address after duplicates, including unknown ones, so for very large cold-email lists MillionVerifier can work out cheaper.
ListMint vs MillionVerifier
ListMint is a newer verifier aimed at cold emailers. Its main pitch is checking catch-all addresses (domains that accept every address, so a normal check cannot confirm the mailbox). It sells monthly plans with a separate pool of catch-all credits.
| Feature | MillionVerifier | ListMint |
|---|---|---|
| How you pay | One-off credit packs that never expire | Monthly plans |
| Catch-all addresses | Reported as catch-all, not charged | Tries to confirm them, using separate catch-all credits |
| Best for | Cheap cleaning of big lists | Outreach lists full of company domains that accept all mail |
If most of your list is catch-all and you send cold email every month, a catch-all specialist can be worth paying for. If you clean lists now and then, one-off credits are usually cheaper. Check each service's current prices before you buy.
Questions people ask
- Do MillionVerifier credits expire?
- No. Its help center says purchased credits never expire.
- Does MillionVerifier charge for catch-all emails?
- No. Catch-all and Unknown results are free; you pay for Ok, Invalid and Disposable.
- Is ListMint better than MillionVerifier?
- They suit different jobs. ListMint focuses on confirming catch-all addresses on a monthly plan; MillionVerifier is a low-cost, pay-once cleaner that does not charge for catch-all results.