Valid Email Checker help center
Detailed answers covering every part of the product. Verification, pricing, the API, integrations, and account management. Search any time using the bar above, or browse by category below.
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Sign up, verify your first email, and find your way around.
How verification works, what each result means, and where the limits are.
Uploading lists, file formats, processing speed, and exports.
Plans, bonus credits, expiration rules, and how to choose.
Cancel, change plans, payment methods, and invoices.
API keys, rate limits, endpoints, and code examples.
Connecting Mailchimp, HubSpot, Klaviyo, and 14 other platforms.
Passwords, 2FA, sessions, and sign-in protections.
Adding members, sharing credits, and role permissions.
How we handle your data, refunds, and compliance.
Sender reputation, bounces, blacklists, and inbox placement.
DKIM, SPF, DMARC checkers and generators, plus email and signature tools.
List hygiene, opt-in, segmentation, and re-engagement.
Plain-English definitions for every term we use.
Threshold, timing modes, monthly limit, suspension, and history.
Unknown auto-refund, refund requests, accuracy guarantee, and timing.
Live chat, contact form, response times, and the in-app help widget.
Can't find what you're looking for? Email support or send us a message.