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