March 26th, 2026

Improved

Email

Prevent Emails from Being Sent to Invalid or Restricted Domains

We’ve introduced enhancements to improve email deliverability and platform security by automatically blocking emails sent to invalid or restricted domains.

What’s New

Automatic Blocking of Invalid Domains

Emails associated with known invalid or restricted domains are now blocked before sending.

Pre-Send Validation

Invalid email addresses are detected early and prevented from being used for email communication, reducing delivery failures and bounce rates.

Clear User Messaging

When an email is blocked due to an invalid domain, users will see the following message:

This email address is invalid as the domain is restricted for security reasons.”

Why This Matters

  • Enhances email deliverability and protects sender reputation

  • Prevents failed deliveries caused by invalid or restricted domains

  • Strengthens platform security and compliance

  • Provides clear and actionable feedback to users