Domain verification involves checking Sweden Phone Number if the domain part of the email address (the part after the "@") exists and can receive emails. This is done by querying the DNS (Domain Name System) records to ensure the domain has valid MX (Mail Exchange) records.
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3. Mail Server Verification
Mail server verification goes a step further by connecting to the mail server via SMTP (Simple Mail Transfer Protocol) to check if the specific email address exists and can receive emails. This method provides a higher level of validation but may be limited by mail server configurations that prevent such checks.