Terms of Service
Last updated: 31 August 2026.
1. Acceptance
By creating an account or using SF Email Verifier you agree to these terms. If you do not agree, do not use the service.
2. What the service does, and what it cannot do
We check whether an address is likely to accept mail, mostly by asking the receiving mail server. Some servers answer honestly, some accept everything, and some refuse to talk to us at all. So:
- A valid result is a strong signal, not a guarantee. A mailbox can be closed the day after we check it.
- Catch-all means the server accepts every address at that domain, so we cannot tell real from fake. This is a real answer about the domain and it is charged.
- Unknown means we could not get an answer and is never charged.
You are responsible for what you do with the results. Do not treat them as a warranty of deliverability.
3. Acceptable use
You agree not to use SF Email Verifier to:
- send unsolicited bulk email, or clean a list you obtained without consent;
- harvest, scrape, or guess addresses belonging to people who have no relationship with you;
- break applicable law, including GDPR, CAN-SPAM, and equivalents;
- resell or repackage the service as your own without a written agreement;
- work around rate limits, share one account across separate businesses, or run automated abuse.
We may suspend an account that does these things. Where we can, we will tell you why first.
The email finder produces likely addresses for a named person at a company domain. Using it to contact people who have asked not to be contacted, or for anything other than legitimate business outreach, is a breach of these terms and probably of your local law.
4. Accounts and API keys
Keep your password and API keys to yourself. Activity through your key is treated as yours. Tell us promptly if a key leaks and we will help you rotate it.
5. Credits and billing
- Credits come from three places: a free daily allowance that resets each day, a monthly allowance included with a paid plan, and top-up credits you buy separately.
- They are spent in that order: free first, then monthly, then top-up. This is deliberate, so the credits you paid for are the last to be touched.
- Monthly plan credits do not roll over. Whatever is unused when the billing period ends is gone, and renewing sets the balance to the plan quota rather than adding to it.
- Top-up credits do not expire and survive a lapsed plan.
- Subscriptions renew automatically until you cancel. Cancelling stops the next renewal; it does not end the period you already paid for.
See the refund policy for when money comes back.
6. Availability
We work to keep the service up and we monitor it continuously, but we do not offer a contractual uptime guarantee, and we would rather say so than print a number we do not measure. Verification depends on remote mail servers we do not control; when one of them refuses to answer, the honest result is unknown, and you are not charged for it.
7. Liability
The service is provided as is. To the extent the law allows, our total liability for any claim is limited to what you paid us in the twelve months before it arose. We are not liable for lost profits, lost opportunities, or damage caused by relying on a verification result.
8. Ending the agreement
You can delete your account at any time from your dashboard. We may close an account for a breach of section 3, or for non-payment. If we close your account without cause, we refund the unused portion of the current period.
9. Changes
We may update these terms. Material changes are emailed to account holders and the date at the top changes. Continuing to use the service after that means you accept the new version.