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Validate a Text File Of Email Addresses
EmailValidator can validate a CSV (comma separated values) file of email addresses. Each email address must be on a line by itself.

For reference, here is an example text file called "members.csv".

user1@hotmail.com,
user2@yahoo.com,
user3@lycos.com,
user4@hotmail.com,
user5@passport.com,
user6@microsoft.com,
user7@aol.com,
user8@hotmail...com,
user9@yahoo.com,
user10@msn.com,
[C#] 
using System;
using Neev Software.ASPNET.Components;
namespace test
{
	class Class1
	{

		[STAThread]
		static void Main(string[] args)
		{
			EmailAddressValidator ev = new EmailAddressValidator();

			//wire up the event handler
			ev.EmailValidationCompleteEvent+= new EmailValidationEventHandler( Validate_OnValidateEmailCompletEvent );
			

			ev.ValidateCSVFile( "members.csv");


			Console.ReadLine();
		}

		static void Validate_OnValidateEmailCompletEvent( object sender, ValidateEmailEventArgs e )
		{			
			if(e.IsValid)
			{
				Console.WriteLine( e.EmailAddress + " is valid.");
				//here is where the database should be updated to reflect a valid email addres
			}
			else
			{
				Console.WriteLine( e.EmailAddress + " is not valid");
				//here is where the database should be updated to reflect an invalid email address
			}
		}
	}
}
[Visual Basic] 
Imports Neev Software.ASPNET.Components
Imports System.Collections
Module Module1


    Sub Main()
        Dim ev As New EmailAddressValidator()

        'wire up the event handler
        AddHandler ev.EmailValidationCompleteEvent, AddressOf Validate_OnValidateEmailCompletEvent

        'validate an ArrayList of Emails
        ev.ValidateCSVFile("members.csv")
        Console.ReadLine()

    End Sub

    'event handler of that is fired everytime an email address is checked for validation	
    Sub Validate_OnValidateEmailCompletEvent(ByVal sender As Object, ByVal e As ValidateEmailEventArgs )
        If e.IsValid Then
            Console.WriteLine((e.EmailAddress + " is valid."))
            'here is where the database should be updated to reflect a valid email addres
        Else
            Console.WriteLine((e.EmailAddress + " is not valid"))
            'here is where the database should be updated to reflect an invalid email address
        End If
    End Sub


End Module
See Also