MailMessage() does not accept 2 arguements C#

I get the above when do this:

MailMessage mm=new MailMessage(senderAddress, recipientAddress);

Error 2'Nazarene.Admin.Occupants.MailMessage' does not contain a constructor that takes 2 argumentsC:\Users\VenezuelanH\Desktop\Internship Projects\Original\Nazarene\Nazarene\Admin\Occupants\MailMessage.aspx.cs45 30Nazarene