SimpleVerifier Team · Reviewed
Does an email verifier keep, share or sell my list?
At SimpleVerifier, results files are deleted 7 days after a list is submitted, and lists are not used for marketing, sold or shared. Confirmed results are cached by address, without your account, for 14 days. Read any vendor's privacy page for its own retention before you upload.
What we keep, and for how long
Results files and their job records are deleted 7 days after a list is submitted. A list still running is kept until it finishes. Confirmed mailbox results are remembered by address for 14 days so a repeat check is instant; that cache is not tied to your account.
On paid plans, a finished list's risky addresses (only those marked Send with care or Check again later, with their earlier status and reason, no other columns) and its job record without the results file are kept for 14 days after the list finishes, so you can re-check them; free accounts keep them only as long as the results file.
What to ask any verifier
The same questions work on every vendor's privacy page.
- How long are uploaded lists and result files kept, and can you delete them sooner?
- Is the list used for marketing, sold or shared with anyone?
- Will it sign a data processing agreement, and is there a subprocessor list?
- Where does the checking run? Ours runs on a US server, so EU data leaves the EU.
What we do not claim
SimpleVerifier countersigns a data processing agreement on request and lists its subprocessors, but holds no GDPR or security certification. No verifier makes you compliant by itself: you still need a lawful basis for the list.
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
- Can I use a verifier without sending my real list first?
- Yes. The first 100 checks are free with a Google sign-in and no card, so you can test with a small sample before uploading the full list.
- Does SimpleVerifier email the people on my list?
- No. Verification checks whether a mailbox exists; it does not send your campaign or contact the people on the list.
Sources
- SimpleVerifier privacy policy: how long we keep it
- SimpleVerifier subprocessors
- SimpleVerifier data processing agreement
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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