email validation tool

How Does an Email Validation Tool Work?

An email validation tool typically works in multiple stages:
Syntax Check: Validates the format of the email address.
Domain Check: Ensures the domain is valid and has a mail server set up.
MX Record Check: Verifies the email server's existence by checking its MX (Mail Exchange) records.
SMTP Authentication: Connects to the mail server to confirm the recipient's email address exists.
Catch-All Check: Determines if the domain is set to receive all emails sent to it, even if the specific address does not exist.

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