$Messages Methods
$Messages are used to create new mail message and parsing.
If you need to create a new mail message you can use the $Messages.New method and send to recipients with Message.Send method.
If you need to convert mail message to an EML file, you can use to Messages.CreateEML][3] store it is a file or use [Messages.ParseEML method to convert back to mail message.
Also you can use the Messages.GetEMLSignatureHash][5] and [Messages.AddEMLSignature methods for digitally signing of the EML files.