Comparison
Publish Now Email Validation vs MillionVerifier
MillionVerifier earns its keep on million-row lists where the per-credit price actually matters. Publish Now is what you reach for when you have one CSV and don't feel like buying a 10K credit pack to test whether validation helps. Drop the file, get a clean list.
Side by side
Pricing from MillionVerifier's public page. Accuracy figures from the LeadMagic 2026 benchmark and vendor claims.
| Feature | Publish Now | MillionVerifier |
|---|---|---|
| Price | Free | $37 for 10K credits, $549 for 1M, ~$0.000549/email at scale. |
| Free tier | Unlimited (rate-limited) | 100 free verifications after signup. |
| Accuracy | 70–90% (MX + DoH) | 95.8% (LeadMagic 2026 benchmark) / 99% (their claim). |
| Signup required | ||
| API available | — (roadmap) | |
| SMTP probing | ||
| Catch-all handling | Limited | Limited |
| Best for | Free first-pass list cleanup before send | Cold-email teams cleaning 100K+ contact lists where the per-credit price actually matters. |
Pick MillionVerifier if…
- ▸You have a list over 50K and the bulk per-credit price beats every other paid option.
- ▸You need full SMTP probing with retry logic for borderline mailboxes.
- ▸You want a paid API to wire into a recurring deliverability pipeline.
Pick Publish Now if…
- ▸You have one CSV today and don't want to sign up, top up, or wait for credits to land.
- ▸You're cleaning under 10K addresses and the MX + DoH first pass is enough to ship.
- ▸You want a result in your browser in seconds, not a billing dashboard.
Frequently asked
Is Publish Now as accurate as MillionVerifier?
Not for SMTP-level checks. MillionVerifier hits around 95.8% on the LeadMagic benchmark thanks to deep SMTP probing. Publish Now catches 70-90% of bad addresses via MX records and DoH lookups, which is what most senders need for a first pass before paying for the last mile.
Why is Publish Now free when MillionVerifier charges per email?
We only do the cheap checks - syntax, MX, DoH - which cost us almost nothing per email. MillionVerifier runs SMTP probes that hit real mail servers, which is slower and pricier. Different tool, different job.
Should I use Publish Now if I already bought MillionVerifier credits?
Yes. Run Publish Now first to strip the obvious bad ones for free, then send the survivors through MillionVerifier. Your credit pack lasts longer and your final list is cleaner.
Can I clean a 50K list with Publish Now?
The CSV drop tool is sized for one-shot cleanup runs in your browser. For lists over a few thousand we'd send you to MillionVerifier or similar - their bulk pricing and queue infrastructure are built for that scale.
Does Publish Now detect catch-all domains?
We flag catch-all signals but we don't score confidence the way a paid SMTP probe does. If catch-all confidence is critical to your workflow, run MillionVerifier on the catch-all subset after our first pass.