Widnode

Transactional Email & Email API

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This email verification tool performs real-time, multi-step validation of email addresses by conducting SMTP handshakes that confirm mailbox existence without sending emails, as well as DNS MX record lookups to verify domain configuration, thereby reducing bounce rates and protecting sender reputation. Its main features include rapid processing under three seconds per email, bulk verification capabilities through CSV uploads, disposable email detection using an extensive blocklist, and seamless integration via a REST API, making it ideal for marketers, developers, and organizations seeking to improve email deliverability, maintain list hygiene, and ensure reliable communication with customers.

Widnode can be found in Transactional Email & Email API categories.

The most similar products to Widnode are:

GlockApps Promoted → PilotVerify Verified profile → MailBoiler Verified profile →

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Widnode Main Features

• REST API
  It provides a simple API that you can connect to your own products to verify emails quickly.
• Free Plan
  You can start for free with 100 verifications each month, no credit card needed, and upgrade when you grow.
• Easy to Use
  It works with common tools like Mailchimp, SendGrid, HubSpot, Klaviyo, Brevo, and ActiveCampaign.
• Team Dashboard
  It has a dashboard where you can see your history, usage, billing, and manage your account easily.
• Bulk Processing
  You can upload large lists of emails in CSV files and check them all at once with progress updates.
• MX Record Lookup
  It looks up the domain's mail records to make sure the domain can receive emails.
• Syntax Validation
  It instantly checks if the email addresses are properly written using standard rules, catching typos.
• Verification Speed
  All checks are done in less than 3 seconds, giving fast results.
• Real SMTP Handshake
  It checks email addresses by connecting to the mail server to see if the mailbox exists, without sending any emails.
• Disposable Email Detection
  It blocks throwaway or temporary email addresses using a list of over 500 domains.

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