Email Validator
Validate email addresses for proper format.
Basic email validation checks for format. For production, use server-side verification with confirmation emails.
How to Do It Manually
Email validation checks syntax (user@domain.extension) and may verify the domain exists. Regex validation is quick; DNS lookup is thorough but slower.
Valid email format: [local-part]@[domain].[TLD]
Frequently Asked Questions
What makes an email valid?
Basic syntax: local part + @ + domain + extension. Plus signs, dots, and hyphens are allowed in parts.
Can I verify an email exists?
Syntax checking is fast but doesn't confirm the address is real. DNS/SMTP lookup can verify (slower, may trigger spam filters).