NoParam

About NoParam

NoParam is a real-time email validation API that checks syntax, domain existence, MX records, and mailbox validity to detect fake, mistyped, temporary, disposable, and role-based email addresses. It returns a validation score and status for each address, with response times under 300ms, and is offered through a REST API that accepts an email address and returns JSON results.

The service also provides bulk email verification through CSV or Excel file uploads, automatically detecting the email column, running checks across the full list in parallel, and returning a downloadable file with verification columns appended to the original data. Pro plan bulk verification supports up to 25,000 emails per file.

NoParam offers a Mailchimp integration for validating contacts within email lists, with HubSpot and Brevo integrations listed as coming soon. A WordPress plugin is also available, enabling real-time email validation in Contact Form 7, WPForms, user registration, and comment forms, with configurable validation checks and customizable error messages. The company states it does not store submitted email data and describes its service as GDPR, CCPA, and PIPEDA compliant. The product is intended for developers, marketers, and businesses seeking to reduce email bounce rates and prevent fake signups.

Key features

• Real-time email verification checking syntax, domain, MX records, and mailbox validity
• Detects disposable, temporary, and role-based email addresses
• Bulk email verification via CSV or Excel upload, up to 25,000 emails per file on Pro plan
• WordPress plugin for validating emails in Contact Form 7, WPForms, user registration, and comments
• Mailchimp integration, with HubSpot and Brevo integrations coming soon
• Validates emails in under 300ms

Frequently asked questions