CreateSimple method is a one-line-command that can be
used in your applications to create email message that has
only text. Message will not be sent. You can add one or
more attachments if needed using Message.Attach method. You can
also change message headers, or any other field
necessary.
It is not required to use CreateSimple method to send
such message - you can create similar message from scratch
using appropriate properties and methods. By using this
method, wodSmtp creates 'template' message and puts
appropriate values to appropriate parts.
To finally send the message, use SendMessage
method.