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Guides and references for developers who validate emails.
How to Validate Email Addresses in Node.js (2026 Guide)
4 approaches from regex to API-based validation, with working code examples and a comparison table.
The Complete List of Disposable Email Domains (2026)
500+ throwaway email domains you should block, with copy-paste detection code for JavaScript and Python.
How to Reduce Email Bounce Rate with Validation
Why emails bounce, how validation prevents it, and how to implement real-time verification at signup.