Smtp |
public bool RequireTLS { get; set; }
Gets or sets whether the client should use the REQUIRETLS extension if it is available.
The REQUIRETLS extension (as defined in rfc8689) is a way to ensure that every SMTP server that a message passes through on its way to the recipient is required to use a TLS connection in order to transfer the message to the next SMTP server.
Note |
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This feature is only available if Capabilities contains the RequireTLS flag when sending the message. |