SimpleVerifier Team · Reviewed
Is there a bulk email verifier with no per-email credits?
Yes. SimpleVerifier Pro is $39 a month with no credits and no per-email fee, and it takes CSV lists of up to 100,000 rows: the first 100,000 a month run at full speed, then slower, never cut off. API calls and live phone lookups are not unlimited. Packs of credits are the alternative for a one-off list.
What no per-email credits means here
You pay one monthly price and upload as many lists as you have. Nothing is metered per address, a re-check of the same list is not a new bill, and nothing expires. The limit is speed, not volume: the first 100,000 a month run at full speed, then slower, never cut off.
Most verifiers sell credits instead, so each pass over a list costs again. That is fine for one list checked once and expensive for a list you keep re-checking.
The plans
Flat monthly plans, with the volume that runs at full speed on each.
| Plan | Price a month | Checks a month at full speed | API calls included |
|---|---|---|---|
| Pro | $39 | 100,000 | 10,000 |
| Business | $99 | 300,000 | 100,000 |
| Agency | $249 | 750,000 | 300,000 |
When credits are the better buy
For one list checked once, a one-time pack can cost less than a month of a plan. One-time packs from $15 for 10,000 checks up to $169 for 250,000; the credits never expire and run at standard speed (CSV verification only). A pack is per-email by design, so pick it only if you will not re-check. Credits vs a monthly plan shows where the two cross.
How long a big list takes
Mailbox checks are conversations with other companies' mail servers, so no verifier is instant on a big list. List jobs run at up to about 60 rows a minute and about 30 a minute averaged over a day; each job shows its estimated finish time. See what a list of your size costs and how long it takes.
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
- Unlimited email verification on Pro means the first 100,000 checks a month at full speed, then slower, never cut off. It is not instant: checks are paced and capacity is shared by all customers, so small lists finish sooner, a very large list queues and can take days rather than hours, and every job shows its estimated finish time. Bad syntax, dead domains and disposable addresses return at once.
- 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 7 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
- What does a bulk verifier with no credits cost?
- Pro is $39 a month ($390 a year): no credits, no per-email fee, the first 100,000 a month run at full speed, then slower, never cut off. The first 100 checks are free.
- Is there a catch?
- Speed and scope. Past the full-speed volume, big lists run in a slower shared lane and are never cut off. API calls are included up to 10,000 a month and then billed, and phone lookups and the finder are not unlimited.
- Can I verify the same list twice?
- Yes. On a flat plan a re-check does not use up credits, so verify again just before you send.
Sources
- SimpleVerifier pricing and limits
- Unlimited email verification: flat price, no credits, never cut off (SimpleVerifier comparison with vendors' published plans)
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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