Message Parameter (Send-SMIMEEmail Cmdlet)
The full text of the message to be sent (without headers).
Send-SMIMEEmail -Message string
Message should contain the full text of the message.
It is advisable that the text contained in this parameter be a collection of lines with lengths less than or equal to 80 bytes separated by CR LF. The text in the message lines must contain 7-bit characters so that the message can be successfully pass through the multitude of mail systems on the Internet.
The cmdlet automatically escapes lines that start with a "." by adding another as specified in RFC 821. The message text is unescaped by the receiving agent, so the process is fully transparent.