Email Address Varification Application in ASP.NET

[zenaidajk]

I am getting 555 syntax error in mailfrom\[code\]SendData(tcpSocket, string.Format("MAIL From: {0}\r\n", MailFrom));if (!CheckResponse(tcpSocket, 220)){tcpSocket.Close();return false;}\[/code\]is it the problem in my local system because of localhost?Please help me. I am using this code from below link.http://www.codeproject.com/Articles/5189/End-to-end-Email-Address-Verification-for-Applicat