SimpleVerifier Team · Reviewed
Which email verifier suits an agency cleaning lists for many clients?
Look for a flat price, client separation and seats. SimpleVerifier Agency is $249 a month with 15 seats and client workspaces that keep each client's lists and exports apart. Business is $99 with 5 seats. Both are flat plans with a full-speed volume, never cut off.
What an agency needs from a verifier
A price that does not rise with each client's list, a way to keep client A's data away from client B, and teammates who can log in without sharing a password.
- Flat monthly pricing, so a new client does not mean a new credit purchase.
- Client workspaces: file each list under a client at upload, then filter history and exports by client.
- Team seats: the owner adds teammates by the Google address they sign in with.
- Exports and reports you can hand to the client.
The plans for teams
Both plans verify without a hard cap: a monthly volume runs at full speed, then big lists run slower and are never cut off.
| Plan | Price a month | Seats | Checks a month at full speed | Client workspaces |
|---|---|---|---|---|
| Business | $99 | 5 | 300,000 | No |
| Agency | $249 | 15 | 750,000 | Yes |
What it does not do
It verifies lists; it does not send, warm up inboxes or test inbox placement. Catch-all domains and some providers cannot be confirmed and come back risky. See the agencies page for the client-report and workspace details.
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
- How many people can use one account?
- Business has 5 seats and Agency 15, the owner included. Teammates share the account's lists, monthly volume and API keys; billing stays with the owner.
- Can I try it on a client list first?
- Yes. The first 100 checks are free with a Google sign-in and no card, on the same engine the paid plans use.
Sources
- SimpleVerifier plans, seats and limits
- Agency client list verification workflow (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.
By continuing you agree to our Terms and Privacy Policy.