Autentify Verify
Verify is a web-based email verification service for organizations that maintain contact lists or collect sign-ups. It checks address syntax, domain and mail-server records, then queries the recipient's server without sending a message; ambiguous responses receive a second check. Results classify addresses as deliverable, undeliverable, risky or inconclusive, with a reason and suggested action. Checks flag temporary addresses and catch-all domains, helping teams review contacts before campaigns or registrations. Users can verify an address in the web portal, upload CSV lists of up to 5,000 rows, or use the HTTP API for real-time validation in forms and other systems. API documentation and responses are in Portuguese, and the same account also provides access to Exposure, Identity, Trust and Score. The service uses prepaid credits in Brazilian reais; inconclusive checks are not charged.
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MailValid
MailValid helps businesses improve email deliverability by verifying email addresses before sending. Detect invalid, disposable, catch-all, and risky emails with real-time API and bulk verification. Reduce bounce rates, protect sender reputation, and improve campaign performance.
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Sealch
Sealch is an email verification service that runs the same live SMTP and catch-all check as ZeroBounce and NeverBounce — at a flat $0.35 per 1,000, roughly 10× cheaper. Upload a CSV or call the bulk API, and every address is checked in real time against the recipient's mail server (no email is ever sent). Results come back cleanly segmented into deliverable, risky, and invalid, with catch-all domains flagged honestly as "risky" instead of a false "valid." You're never charged for unknowns, and credits never expire. Built for outbound and email marketing teams who need a clean list before they send — without paying enterprise prices. Features include live SMTP verification, catch-all detection, disposable and role-based address filtering, bulk CSV processing, and a REST API. Start free with 200 verifications, no credit card required.
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Heybounce
Heybounce is an email verification service that offers fast, accurate, and secure email verification.
Its primary goal is to help companies reduce bounce rates and protect their sender reputation.
Bulk email list verification: Upload CSV/XLSX files to validate large email lists. Remove invalid and risky emails, and land in the right inboxes.
API integration: Allows real-time email verification integration to your platform. Catch invalid sign-ups when they happen, verify your lead pages, or integrate wherever emails are collected.
It checks emails for valid syntax, domain existence, SMTP connectivity, and flags risky addresses such as disposables, spam traps, catch-alls, and role-based emails. Heybounce also offers team accounts for collaboration, customizable validation filters to fine-tune which addresses should be allowed or blocked, and flexible pricing for every budget.
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