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.
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.