Validating email address via SMTP

Just pass email address to be validate...

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string[] host = (address.Split('@'));

string hostname = host[1];

IPHostEntry IPhst = Dns.Resolve(hostname);

IPEndPoint endPt = new IPEndPoint(IPhst.AddressList[0], 25);

Socket s= new Socket(endPt.AddressFamily,

SocketType.Stream,ProtocolType.Tcp);

s.Connect(endPt);

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