Verification
Syntax validation
Checking if an email address follows the correct format (e.g., user@domain.com) according to RFC standards.
Definition
Syntax validation is the first step in email verification - checking if an email address follows the correct format according to RFC 5321/5322 standards. This includes verifying the presence of @ symbol, proper domain format, allowed characters, and length limits. Syntax validation catches obvious errors but doesn't confirm the address actually exists.
Examples
Valid: user@example.comInvalid: user@@example.comInvalid: user@.comInvalid: user@example
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