var myMessage = new SendGridMessage(); myMessage.From = new MailAddress(\"info@email.com\"); myMessage.AddTo(\"Cristian
\ it is a escape character
\
//Initialize with a regular string literal.
myMessage.AddAttachment(@"C:\test\test.txt");
else // Initialize with a verbatim string literal.
myMessage.AddAttachment("C:\\test\\test.txt");