SetSmtp
The SetSmtp function sets the SMTP server to be
used.
Syntax
Important: This feature is deprecated, its use is
discouraged although not prohibited.
CALL ui.Interface.frontCall("WinMail","SetSmtp",
 [ id, smtp:port ], [ result ] )
- id is the message identifier.
 - smtp is the string text containing the SMTP server to be used.
 - port is optional. It allows to specify a port for your SMTP server. When not specified, the default port remains 25.
 - result is the status of the function.