MailboxValidator vs Reoon Email Verifier

MailboxValidator checks email addresses and mailboxes to flag invalid addresses and help reduce email bounces. It is available on the web and through an API, with single-address results returned as JSON or XML. For lists, users can upload text or CSV files for bulk validation. Checks cover syntax, MX records, SMTP responses, greylisting, disposable and free-provider addresses, role addresses, suppression, DMARC, strict SPF, and website reachability. The company says it tests the connection through the SMTP server without sending a message to the recipient. Listed integrations include Zapier, Make, MailChimp, Mailgun, SendGrid, HubSpot, and others; API documentation links libraries for Node.js, Ruby, PHP, Perl, Python, Java,.NET, Go, and Rust. The free API plan is free, billed per month, with 300 queries and 30-day validity. A bulk trial is free for 100 queries and 30-day validity. Yahoo validations are unsupported, and non-ASCII addresses are marked invalid syntax. The FAQ says refunds are not offered; its privacy policy says processed personal data is retained indefinitely, subject to policy limits on deletion requests.

Reoon Email Verifier checks addresses to help email marketers, list owners, SaaS apps, websites, lead-generation teams, and agencies clean mailing lists. It identifies invalid, disposable, risky, and spam-trap addresses using syntax checks, domain and MX records, SMTP mailbox verification, risk matching, and catch-all detection. Results include a status, an AI-powered score from 0 to 100, and downloadable categorized results. Users can paste addresses or upload CSV files, with automatic identification of the email column. The REST API provides Quick checks, deeper Power verification, and bulk verification. A WordPress plugin validates form submissions and blocks invalid, temporary, or fake addresses. The Free Tier costs nothing for lifetime, includes 20 emails per day and 100 instant credits, and provides single, bulk, and live API verification. Daily Credits cost $9 a month; Instant Credits cost $11.90 as a one-time purchase. Reoon says uploads use AES-256 encryption, are not shared or sold, and are deleted after 15 days by default. Unknown results are not charged, with credits refunded automatically after verification completes.