Gets the text of the server's reply.
The text of the server's response to the most recent command.
The ReplyText property removes the initial reply code and
the final CR LF from the server's response. For example, if the
server's response is "550 No such user here\r\n", the reply text is
"No such user here". If the server sends a multiple line reply,
this property returns only the text of the first line.
SmtpClient Class | Hunny.Mail Namespace