Frequently asked questions

Email verification checks syntax, domain mail records, risk signals, and SMTP mailbox response where providers allow it. Some providers limit mailbox-level proof, so results may be valid, risky, or unknown with provider caveats.

Kawaa combines syntax validation, DNS/MX checks, risk signals, and AI-powered analysis. We publish percentage accuracy claims only after benchmark validation.

Verification speed depends on cache state, DNS response time, and optional analysis. Batch requests support up to 10,000 emails per request, depending on your plan.

You get 100 credits at signup and another 100 each time a paid subscription ends and your account returns to Free. Free credits do not renew monthly. No credit card is needed to sign up.

Verification stops until you add credits: we never charge overage fees automatically, so you stay in control of your spending. Buy a credit pack at any time, with no subscription and on any plan, Free included (packs start at $5 for 1,000 credits, and the pricing page lists them all), or move to a larger plan. On Free, buying any pack also raises the most addresses one bulk job takes from 100 to 1,000, for good.

Yes. On a paid plan, your plan’s credits are added to your balance on each billing date, and credits you have not used stay in your balance. Credit packs you buy are added to the same balance and do not expire. If your paid plan ends, only the unused plan credits from its last billing period are removed. You get 100 credits at signup and another 100 each time a paid subscription ends and your account returns to Free. Free credits do not renew monthly.

Yes, you can cancel your subscription at any time. You'll retain access until the end of your current billing period.

We perform comprehensive checks including: syntax validation, DNS record verification, MX record lookup, disposable email detection, role account detection, and AI-powered catch-all analysis.

Depending on your plan, you can verify up to 10,000 emails per batch (100 on Free up to 10,000 on Enterprise; a Free account that has bought any credit pack takes 1,000) via our API or dashboard. Upload CSV/TXT files or send emails via our REST API.

Install the Node.js SDK from npm or the Python SDK from PyPI; both are called kawaa. There is no package for PHP, Go, Ruby, Java, C# or Rust yet: call the REST API directly from those languages, or email developers@kawaa.com for early access to a client.

Yes, you can configure webhooks to receive notifications when batch jobs complete. We support HMAC signature verification for security.

There are no native CRM apps yet. Today you can connect HubSpot, Salesforce or Mailchimp to Kawaa through our REST API, or export a list as CSV and upload it in Bulk verify. Native HubSpot and Salesforce apps are in development, and Zapier and Make integrations are coming soon.

Our Zapier integration is coming soon. In the meantime, you can connect Kawaa to your Zapier workflows today using Webhooks by Zapier with our REST API.

Not yet. A Google Sheets add-on is on our roadmap. Today you can export your sheet to CSV and upload it in Bulk verify, or connect through the API and SDKs.

Connections to our website, dashboard, API and status page use TLS 1.2 or later, and account data, verification results and uploaded lists are encrypted at rest with AES-256. The mailbox check is not encrypted: it is an SMTP conversation with the mail server that receives mail for the address, so that server is sent the address in plain text. Internal verification lookups are keyed by a one-way hash rather than the raw address. You can export your data from the dashboard at any time, and delete your account yourself once any paid plan you cancelled has reached the end of its billing period (a team owner first transfers the team or removes its other members); the deletion is scheduled for 30 days after you confirm it.

We're built to support GDPR obligations: we offer a Data Processing Agreement (DPA) for customers who require it, and you can request data export or deletion at any time.

We do not sell your email data.