Email Validation
01 Definition
Email Validation meaning: Checking whether an email address is real, correctly formatted, and able to receive mail before sending.
Email validation tests an address for syntax errors, valid domains, and active mailboxes, often using a verification service. It runs at signup or in bulk before a campaign. Validation reduces bounces but cannot confirm that a real person owns or wants the address.
Also called
Why it matters
How Email Validation fits the work
Sending to fake or mistyped addresses raises bounce rates and can trip spam filters, so validating addresses helps protect your sending reputation.
In context
A form added real-time email validation and caught 1,200 mistyped addresses in a month, cutting the signup bounce rate roughly in half.
Practical note
Real-time validation at signup catches typos, but treat "risky" or "unknown" results with care, since aggressive filtering can wrongly reject valid addresses.