4 min read
2026-03-03
Validate email in real time while the form is being filled out. Show the user a specific error: "domain does not exist," "invalid format."
Run your existing contact database through the validator. Remove invalid addresses to improve deliverability and reduce costs.
Before a mass mailing, check the recipient list. A high percentage of bounced emails damages domain reputation.
When receiving data from external sources (partner APIs, CSV imports), validate every email before saving to the database.
Valid — the address meets standards
Syntax error — the format is violated
Suspicious — disposable or unusual domain
Check your addresses with the Email Validator.
See also: Phone Validator, URL Validator, JSON Data Generator