SimpleVerifier Team · Reviewed
What is the cheapest email verifier for a big list?
The lowest published price we found for 1,000,000 addresses is $175 (Listclean), against $249 on SimpleVerifier (one month of Agency, the first 750,000 at full speed, then slower). Prices were read between 12 October 2026 and 10 November 2026 and change, so check the live pages before you buy.
Who is cheaper than SimpleVerifier, and who is not
For one pass over 1,000,000 addresses, the vendors we priced that cost less than SimpleVerifier are: Listclean. If a single cheap pass is all you need, pick from them and check the live page, since prices and terms move.
SimpleVerifier's case is a flat monthly price. Pro is $39 a month with no credits and no per-email fee: the first 100,000 a month run at full speed, then slower, never cut off. Big lists also queue behind shared capacity, so 30 addresses a minute averaged over a day is the pace to plan around. If speed matters more than price, read the speed answer first.
What to add to the sticker price
Compare the total, not the per-1,000 figure.
- Whether unknown or risky results cost a credit.
- Whether credits expire before you use the rest of the pack.
- Whether you will re-check the list. On pay-per-email pricing every re-check is a new bill.
- How long the job takes, and the file size limit per upload.
What SimpleVerifier costs and what it cannot confirm
- What it is
- Email verification with a real SMTP mailbox check: each address comes back valid, risky or invalid with a reason. Includes an email finder on Pro and up.
- Price per check
- Starter $9/mo for 2,500 ($3.60 per 1,000); Pro $39/mo, 100,000 a month at full speed ($0.39 per 1,000 when used), then slower, never cut off. Business $99/mo with 300,000 at full speed; Agency $249/mo with 750,000 at full speed.
- One-time packs
- 10,000 for $15 ($1.50 per 1,000); 25,000 for $29 ($1.16 per 1,000); 50,000 for $49 ($0.98 per 1,000); 100,000 for $79 ($0.79 per 1,000); 250,000 for $169 ($0.68 per 1,000). Credits never expire, run at standard speed, CSV verification only (no API or finder).
- Free checks
- First 100 email checks free with a Google sign-in, no card, once per account. Single checks on the free email checker need no account.
- Billing
- Monthly subscription, cancel anytime (yearly billing optional). One-time packs are listed above. Starter allowances reset monthly and do not roll over.
- Speed today
- Capacity is shared by every customer: plan on about 13,000 mailbox checks a day in the standard lane (more when the queue is quiet). Bad syntax, dead domains and disposable addresses return at once; a list of 100,000 takes days, not hours, and each job shows its estimated finish time.
- Catch-all handling
- Catch-all (accept-all) addresses stay risky, never valid, and are graded higher, medium or lower likelihood with the reasons. Anything a mail server does not confirm is risky.
- API and MCP
- REST API on Pro, Business and Agency (Pro includes 10,000 calls a month, then $1.50 per 1,000). Remote MCP server with 6 tools for Claude, ChatGPT, Cursor and VS Code. No API on Starter.
- Integrations
- Connects to Instantly, Smartlead, HubSpot and Mailchimp by API key: verifies a campaign or list and tags each contact with its result. CSV in and out for any other tool.
- Phone
- Free phone format checks (country, type range). Live carrier and line-type lookups come with Pro + Phone at $49.99/mo (5,000 a month). It never says a number is in service.
- Privacy and GDPR
- Data processing agreement countersigned on request (/dpa). Results files deleted 7 days after a list is submitted; confirmed results cached by address for 14 days. Lists are not used for marketing, sold or shared. Verification runs on a US server. No GDPR certification is claimed.
- What it does not do
- No sending, warmup or inbox placement tests. No published accuracy benchmark against other verifiers. Catch-all domains, Yahoo and AOL cannot be confirmed, and Outlook.com and Hotmail mailboxes are not probed while Microsoft refuses checks from our server's network: all of these come back risky, never valid.
SimpleVerifier facts from our pricing page and product. Last updated .
Related questions
- Is the cheapest verifier at 10,000 addresses also cheapest at 1,000,000?
- Not necessarily. The cheapest vendor changes with list size, because each one prices its tiers differently. Check the cost page at the size you actually have.
- Is cheaper always better?
- No. A verifier that labels unconfirmed addresses valid costs you in bounces. Compare the price per confirmed result, not per row.
Sources
- Email verification pricing index, 1 and 2 October 2026 (SimpleVerifier study, CSV included)
- Which email verifiers' credits expire? Read from each vendor's own pages, 2 November 2026 (SimpleVerifier)
Figures marked as ours come from SimpleVerifier’s own dated tests on made-up addresses, published with their data on the research page. No customer data is used, and we publish no accuracy percentage because we have no independent measurement to back one.
Do it now
Test it on a real address first
Type any address. It gets the same check the paid plans run: syntax, the domain’s mail servers and, where the provider allows it, a live mailbox check. Nothing is sent to the address.
Five checks a minute, no account needed. Nothing is sent to the address — we ask its mail server whether the mailbox exists, then disconnect.
Have a list? Sign in with Google and the first 100 addresses are checked free, with results to download. No card.
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