How to Validate Email Addresses Before Sending (Node.js)

1. 1Check email format using a regex pattern to ensure basic validity
2. 2Use a DNS lookup to verify the existence of the email domain
3. 3Apply the Mailgun or Clearbit API to validate email addresses and check for typos and disposable emails
4. 4Test your email validation function with sample email addresses to ensure correctness
5. 5Implement a retry mechanism to handle temporary validation failures

Backend developers and DevOps engineers can benefit from this lesson to improve email deliverability and reduce bounces in their applications

💡 Email format checking is not enough, use DNS lookup and APIs to validate email addresses

Validate email addresses before sending to prevent bounces and improve deliverability #emailvalidation #nodejs