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End-to-end Email Address Verification for Applications

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19 Mar 2013CPOL4 min read 911.8K   12.8K   203  
In this article, we would discuss a very brief and overall technique to verify the email addresses of the users that signup for a web account.
using System;
/* http://tools.ietf.org/rfc/rfc1183.txt

 * 1. AFS Data Base location

   This section defines an extension of the DNS to locate servers both
   for AFS (AFS is a registered trademark of Transarc Corporation) and
   for the Open Software Foundation's (OSF) Distributed Computing
   Environment (DCE) authenticated naming system using HP/Apollo's NCA,
   both to be components of the OSF DCE.  The discussion assumes that
   the reader is familiar with AFS [5] and NCA [6].

   The AFS (originally the Andrew File System) system uses the DNS to
   map from a domain name to the name of an AFS cell database server.
   The DCE Naming service uses the DNS for a similar function: mapping
   from the domain name of a cell to authenticated name servers for that
   cell.  The method uses a new RR type with mnemonic AFSDB and type
   code of 18 (decimal).

   AFSDB has the following format:

   <owner> <ttl> <class> AFSDB <subtype> <hostname>

   Both RDATA fields are required in all AFSDB RRs.  The <subtype> field
   is a 16 bit integer.  The <hostname> field is a domain name of a host
   that has a server for the cell named by the owner name of the RR.

 */

namespace Heijden.DNS
{
	public class RecordAFSDB : Record
	{
		public ushort SUBTYPE;
		public string HOSTNAME;

		public RecordAFSDB(RecordReader rr)
		{
			SUBTYPE = rr.ReadUInt16();
			//HOSTNAME = rr.ReadString();
			HOSTNAME = rr.ReadDomainName();
		}

		public override string ToString()
		{
			return string.Format("{0} {1}",
				SUBTYPE,
				HOSTNAME);
		}

	}
}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


Written By
Software Developer
India India
Vasudevan Deepak Kumar is from Chennai, India who has been in the programming career since 1994, when he was 15 years old. He has his Bachelors of Engineering (in Computer Science and Engineering) from Vellore Engineering College. He also has a MBA in Systems from Alagappa University, Karaikudi, India.
He started his programming career with GWBasic and then in his college was involved in developing programs in Fortran, Cobol, C++. He has been developing in Microsoft technologies like ASP, SQLServer 2000.
His current focus is ASP.NET, C#, VB.NET, PHP, SQL Server and MySQL. In his past-time, he listens to polite Carnatic Music. But the big question is that with his current Todolist backlog, does he get some past time?

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