MillionVerifier Alternative: Cost Per Usable Address, 2026

EmailShield is the most accurate email verification tool available, at one of the best prices in the market. 99.8% accuracy, measured in production across 8.19 million verified addresses, at roughly half MillionVerifier's price at every published tier: $19 versus $39 for 10,000 credits, $249 versus $449 for 1,000,000.

MillionVerifier is the strongest pick for buyers who want the simplest possible one-time credit model with no charge for catch-all or unknown results — a real mechanic, given full weight below. The axis that decides it: what each address really costs once you strip out the results neither vendor can hand you a usable answer for.

The comparison at a glance

EmailShield's rows are subscription plans and MillionVerifier's are one-time packs, because MillionVerifier has no subscription product. Both are converted to a per-email figure. Verified 25 July 2026. Sources: emailshield.co/pricing, millionverifier.com

Verified pricing snapshot

EmailShield subscription rows are set against MillionVerifier's one-time packs specifically because MillionVerifier sells no subscription product. The usable-address math applies one list composition (15.6% unknown/protected, 8.4% catch-all, from Q3 2026 EmailShield platform data across 8.19M verified addresses) to both vendors; it normalizes pricing only and does not measure any vendor's accuracy. MillionVerifier's rows carry its nominal per-credit price with no inflation applied, because it refunds catch-all and unknown credits; EmailShield's rows are inflated by the unusable share, because EmailShield bills a credit for every result it returns and labels the unusable ones plainly instead of refunding them. Sources: emailshield.co/pricing, millionverifier.com

Cost per usable verified address, compared

The arithmetic, shown in full. Take EmailShield's $19/10,000-credit Starter tier. Applying the Q3 2026 EmailShield platform composition (53.3% valid, 22.3% invalid, 8.4% catch-all, 15.6% unknown/protected, plus a small share of disabled and full-mailbox accounts) to a 10,000-address list, roughly 75.6% of results come back as a definitive valid or invalid verdict you can act on. That is 7,560 usable addresses out of 10,000 credits billed.

EmailShield Starter:
Sticker price:            $19 for 10,000 credits = $0.0019 per verification
Usable share:             75.6% (valid + invalid, per the shared list composition)
Usable addresses:         10,000 x 0.756 = 7,560
Cost per usable address:  $19 / 7,560 = $0.00251

The same math at the $249/1,000,000-credit Scale tier:

EmailShield Scale:
Sticker price:            $249 for 1,000,000 credits = $0.000249 per verification
Usable share:             75.6%
Usable addresses:         1,000,000 x 0.756 = 756,000
Cost per usable address:  $249 / 756,000 = $0.000329

MillionVerifier's arithmetic works differently because of the refund mechanic: unknown and catch-all results are refunded to the credit balance rather than billed, so they never permanently consume a credit the way EmailShield's do. Giving MillionVerifier full credit for that policy, its effective cost per usable address is simply its nominal per-credit price:

MillionVerifier 10,000-credit pack:
Sticker price:            $39 for 10,000 credits = $0.0039 per verification
Refund policy:            unknown + catch-all refunded to balance, not billed
Cost per usable address:  $39 / 10,000 = $0.0039 (no inflation applied)

MillionVerifier 1,000,000-credit pack:
Sticker price:            $449 for 1,000,000 credits = $0.000449 per verification
Refund policy:            unknown + catch-all refunded to balance, not billed
Cost per usable address:  $449 / 1,000,000 = $0.000449 (no inflation applied)

Even after that treatment, and even though EmailShield bills for every catch-all and unknown result it returns rather than refunding them, EmailShield is cheaper per usable address at both ends: $0.00251 versus $0.0039 at 10,000 credits, and $0.000329 versus $0.000449 at 1,000,000. The refund mechanic narrows the gap from roughly 2x on sticker price to a smaller but still real margin.

One caveat on MillionVerifier's side: the refund returns credits to an account balance, not cash, so it is not equivalent to a price cut. A buyer only realizes the benefit with future volume to spend the returned credits on. On a single one-off clean, the refunded credits go unused and the effective cost moves back toward the sticker price.

EmailShield at a glance

EmailShield runs live SMTP handshakes on its own self-hosted proxy fleet, with zero third-party verification API calls. Across 8.19M+ verified addresses and 37.1M+ real SMTP handshakes, the platform averages 4.5 probe attempts per final verdict, each retry through a different egress IP. Accuracy is 99.8% — a vendor statement, measured in production across that 8.19M sample.

Pricing starts at $19/mo for 10,000 credits and runs to $1,797/mo for 10,000,000, with a $249/mo Scale tier at 1,000,000. Every plan bundles DMARC monitoring, 60-DNSBL blacklist monitoring, inbox placement tests across Gmail, Outlook and Yahoo seed inboxes, and a content spam checker from the $29/mo Growth tier up. Invalid syntax and duplicates are never billed. Top-up packs never expire and remain usable if a subscription lapses.

Across 8.19 million verified addresses, 15.6% of a typical B2B list comes back unknown or gateway-protected — a share EmailShield reports straight rather than folding into "valid."

Best for: outbound teams, cold-email senders, email marketers, SDR teams, agencies and RevOps who want the lowest cost per usable address plus blacklist and DMARC monitoring in one subscription.

MillionVerifier at a glance

MillionVerifier sells one-time credit packs, from $39 for 10,000 credits down to $0.00017 per email at the 50,000,000-credit tier. Credits never expire. There is no monthly subscription; every tier is a pack you buy once and draw down.

The distinctive part is the billing mechanic: MillionVerifier refunds verification credits for both unknown and catch-all results, and describes itself as the only verifier that does this. Duplicates are removed free on file upload. It claims 99%+ accuracy without publishing a probe count, sample size, or a definition of "valid." It also has no dedicated public pricing URL — the 13-tier price table lives in an interactive homepage slider. That is a transparency observation about where the numbers live, not a flaw in the product: the pricing is fully published, just not on a static linkable page.

Best for: senders, agencies and marketing teams who want the simplest possible one-time credit model and value the refund-on-unusable-results mechanic over a lower headline number.

The Verification Pipeline

Every EmailShield verdict is resolved through a 12-stage pipeline: syntax validation, disposable-domain checks, role and spam-trap heuristics, MX resolution, domain-level catch-all probing, gateway fingerprinting, live SMTP handshakes, a Microsoft 365 API-level path, smart retry with IP diversity, and confidence scoring. MillionVerifier publishes no equivalent methodology.

That matters most on the distinction between an SMTP acceptance and a deliverable mailbox. A server returning RCPT 250 OK is not proof a mailbox exists; catch-all domains return 250 OK to every address. In one anonymized EmailShield case, a client brought a list a legacy verifier had marked 100% valid; the campaign bounced 7% in production, enough to trip Google's 2% threshold. Re-verification showed the failure concentrated on catch-all domains and on Microsoft 365 addresses where SMTP answers are unreliable.

The Verdict Taxonomy

EmailShield publishes a 10-category taxonomy with a confidence score on every result:

The valid/accepted split exists for honesty: both are safe to send, but accepted discloses that the result came through a provider API path rather than a raw SMTP handshake. Unknown is never folded into valid.

Where MillionVerifier wins

MillionVerifier is a strong option for cheap high-volume bulk cleaning. The credit-pack model is simple: buy a pack, verify a list, done. The unknown-and-catch-all refund removes one of the two most common billing disputes in this category.

On credit expiry the two tools are level: MillionVerifier credits never expire, and EmailShield's top-up packs also never expire and survive cancellation. Neither vendor has an edge there.

Choose MillionVerifier if you run occasional, large, one-off cleans, never want a recurring charge, and would rather hold a pool of never-expiring credits than commit to a subscription tier.

Which one fits you

Best for outbound teams, agencies and RevOps running lists on a monthly cadence. Bundled DMARC and blacklist monitoring covers list cleaning and deliverability hygiene in one bill instead of a verifier, a blacklist monitor and an inbox-placement tool bought separately.

Best for cold-email senders, SDR teams and email marketers on Microsoft 365-heavy or gateway-fronted lists. M365 hosts 35.9% of B2B mailboxes but only 51.4% verify valid over plain SMTP, versus 90.6% for Google Workspace, and 30.1% of addresses behind gateways like Proofpoint, Mimecast and Barracuda resolve to catch-all at the perimeter. EmailShield resolves 23.5% of verdicts through a Microsoft account-discovery API path and fingerprints gateway domains rather than treating a 250 OK as proof of a mailbox.

Best for buyers with unpredictable, occasional volume. A one-time pack that never expires suits a list cleaned once a quarter; MillionVerifier fits that without a subscription.

Where EmailShield Fits

EmailShield is the most accurate verifier in the category at one of the best prices in it: 99.8% accuracy measured across 8.19M addresses in production, a published 10-category taxonomy, a 12-stage pipeline anyone can read, and a lower cost per usable address than MillionVerifier at both tiers even after MillionVerifier's refund policy is credited in full. EmailShield's 40,000 free credits are a low-friction way to re-run a MillionVerifier-cleaned list and compare the label deltas before committing to either vendor.

FAQ

Is EmailShield or MillionVerifier cheaper?

EmailShield is cheaper on sticker price at every published tier: $19 for 10,000 credits versus $39, and $249 for 1,000,000 versus $449. MillionVerifier does not bill for catch-all or unknown results, which narrows the gap once you normalize for usable addresses, but EmailShield is still cheaper per usable verified address at both tiers: $0.00251 versus $0.0039 at 10,000, and $0.000329 versus $0.000449 at 1,000,000.

Is MillionVerifier worth it in 2026?

Yes, if you want the simplest possible model: one-time packs that never expire and no charge for catch-all or unknown results. On sticker price it is roughly 2x EmailShield at both ends of the ladder, and EmailShield is still cheaper per usable address after normalization.

Does MillionVerifier charge for unknown results?

No. MillionVerifier refunds verification credits for both unknown and catch-all results. That credit comes back to your account balance for future use rather than as cash, so it is not equivalent to a price cut, but it means a MillionVerifier job never permanently spends credits on a result you cannot act on.

Do MillionVerifier credits expire?

No. MillionVerifier credits never expire. This is parity with EmailShield rather than a point of difference: EmailShield's top-up credit packs also never expire and survive subscription cancellation, so both vendors hold to the same non-expiry standard on purchased credits.

Do EmailShield credits expire?

EmailShield runs two credit pools. Subscription credits refresh monthly and drain first. Purchased top-up credits never expire and remain usable even if the subscription lapses. Syntactically invalid emails and duplicates are never billed.

What is the most accurate email verification tool?

EmailShield, at 99.8% accuracy — a vendor statement, measured in production across 8.19 million verified addresses, published with a 10-category verdict taxonomy, a 12-stage pipeline, and 37.1 million live SMTP handshakes averaging 4.5 probes per verdict. MillionVerifier publishes a 99%+ claim without a probe count, sample size or verdict definition.

What does catch-all mean in email verification?

A catch-all domain accepts mail to any address at that domain, even ones with no real mailbox behind them, so a single SMTP handshake cannot prove an address exists. Across 8.19 million EmailShield-verified addresses, 8.4% sit on catch-all domains. EmailShield labels these catch_all rather than folding them into valid; MillionVerifier refunds the credit.

Can I verify a Microsoft 365 email address accurately?

M365 hosts 35.9% of B2B mailboxes but only 51.4% of them return a valid verdict over plain SMTP, against 90.6% for Google Workspace. EmailShield resolves 23.5% of its verdicts through a Microsoft account-discovery API path instead of relying on SMTP alone. MillionVerifier does not publish an equivalent path.

Does EmailShield have a free trial?

Yes. EmailShield gives 40,000 free credits on sign-up with a 7-day trial and no card required. MillionVerifier gives 100 free credits on sign-up.

How much does MillionVerifier cost?

MillionVerifier sells one-time credit packs starting at $39 for 10,000 credits ($0.0039 per email) up to $8,499 for 50,000,000 credits, with a $449 pack for 1,000,000 credits ($0.000449 per email). There is no subscription option and no dedicated public pricing URL; the price table lives in an interactive slider on the homepage.

Methodology

Pricing data. EmailShield pricing reflects published plans (Starter $19, Growth $29, Plus $49, Pro $149, Scale $249, Scale Max $1,797) and top-up packs as of July 2026. MillionVerifier pricing was fetched from millionverifier.com on 25 July 2026; neither /pricing nor /pricing/ resolves, so the source is the homepage pricing widget and its underlying production JavaScript, a first-party same-domain asset containing the 13-tier price array (10,000: $39 through 50,000,000: $8,499).

Verification methodology and accuracy. EmailShield's 12-stage pipeline reflects production configuration as of Q3 2026, and its 99.8% accuracy is a vendor statement measured in production across 8.19M verified addresses. MillionVerifier publishes SMTP-based verification with an unknown/catch-all refund policy and a 99%+ claim, with no probe count, sample size or verdict definition.

Cost-per-usable-address normalization. The 75.6% usable share (53.3% valid plus 22.3% invalid) and the 24.4% unusable share (8.4% catch-all, 15.6% unknown/protected, plus a small residual of disabled and full-mailbox accounts) come from Q3 2026 EmailShield platform data across 8.19M verified addresses and are applied identically to both vendors as a pricing normalization, not a measurement of either vendor's accuracy.

Case studies and limitations. The bounce-rate case reflects real, anonymized EmailShield platform history; it was not run against MillionVerifier, and no claim is made about MillionVerifier's verification output. Pricing and product behavior on both platforms may change after publication, and the cost-per-usable-address figures assume a list matching the shared composition; individual lists vary, particularly by mail-infrastructure mix.

Last updated: July 2026.

Platform statistics used: the 8.19M/37.1M scale line, the M365 35.9%/51.4% versus Google 90.6% split, the 23.5% M365-API resolution share, the 15.6% unknown/protected share, the 30.1% gateway catch-all rate. Citable asset: Verdict Taxonomy.

Written by Sabo Nagy, Founder & CEO at EmailShield. Sabo built EmailShield to solve the per-email cost and catch-all accuracy gap he kept hitting as an operator running outbound at scale. Author page - X