Feature Feature

Mail Server and MX Record Verification

An email address is only useful if it is backed by a real mail server. Without valid MX records, emails will never be delivered. EasyEmailAPI verifies mail servers and MX records to ensure email addresses are technically reachable.

MX record verification illustration

Why MX record verification is critical

Emails sent to domains without valid MX records result in:

  • Guaranteed delivery failures
  • Increased bounce rates
  • Poor sender reputation

Catching these issues early saves time and resources.

How EasyEmailAPI verifies mail servers

During validation, EasyEmailAPI checks:

  • Domain existence
  • MX record configuration
  • Mail server availability

This ensures emails are sent only to addresses with proper infrastructure.

Common use cases

MX verification is essential for:

  • Signup validation
  • Lead imports
  • Bulk email verification
  • Marketing campaigns

Benefits for teams

  • Fewer hard bounces
  • Improved deliverability
  • More reliable email infrastructure
  • Cleaner contact lists

When this feature matters most

Mail server verification is especially important if:

  • You send transactional emails
  • You manage large lists
  • You rely on email for onboarding

Get started

Verify mail servers with EasyEmailAPI

MX and mail server checks, real-time validation, and a free tier available.

Verify mail servers Protect deliverability from day one.