Adding Email Validation to Your CI/CD Pipeline
Your test suite checks database schemas, API responses, and UI renders — but does it catch the signup flow accepting 'user@gmai.cm'? Here's how to add email validation testing to your deployment pipeline so bad emails never reach production.
Email Deliverability Guide for Developers: From Inbox to Impact
Getting your email into the inbox isn't luck — it's SPF, DKIM, DMARC, sender reputation, and a clean list working together. This is the full technical picture from authentication to delivery.
Email Risk Scoring: How to Automatically Block Bad Signups
Not every bad email is obviously bad — some are valid addresses attached to high-risk patterns. Risk scoring is how you catch the ones that slip past every other filter.
SMTP Verification Explained: Check If an Email Actually Exists
SMTP verification lets you knock on a mailbox door without ever sending a message — but it comes with traps most developers fall into. Here's what actually happens under the hood.
MX Record Verification: How It Works and Why It's Essential
Syntax checks lie. A perfectly formatted email can belong to a domain that hasn't been able to receive mail in years. MX record verification is how you find out the truth.
Disposable Email Addresses: How to Detect and Block Them
One script, hundreds of throwaway addresses, unlimited free trials drained in minutes. This is how disposable email abuse actually works — and how to stop it cold.