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Use SSL/TLS
To use SSL/TLS with SMTP, you need to do the following:
- Before opening connection, set UseSSL property of TElSMTPClient class to true.
- Specify SSL/TLS mode using SSLMode property of TElSMTPClient class.
SMTP supports 2 modes -- so-called explicit and implicit SSL.
With implicit SSL, the SSL/TLS communication is established before SMTP protocol connection, and all SMTP protocol communications go via encrypted channel.
With explicit SSL the SSL/TLS connection is initiated during login (when Login() method is called).
- Setup SSL-specific properties and events, as described in the corresponding how-to article.
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