Verifying an email address means checking if it’s valid, active, and able to receive mail without actually sending a message. This helps reduce bounces, avoid spam traps, and protect your sender reputation.
The 3 main methods:
- Syntax check: Does the email follow a valid format (no typos like “gmial.com”, missing @ symbol, etc.)?
- Domain check: Is the domain (like gmail.com) live and configured to accept mail?
- Mailbox ping: A non-intrusive server check to see if the specific email inbox exists.
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