Reading emails from an exchange server

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C#

I'm trying to read emails from an exchange server and make an raport with them, but i encounter a problem. I think my application dosen't retrive the mail correctly, because when I search the specific Inbox throw the webapp it finds 1000 results but when i search the same text it finds only 333. This is my code:

using Higuchi.Net.Pop3; 
Pop3Client pop3Client = new Pop3Client("username", "pass", "srv");
pop3Client.Authenticate();
long totalCount = pop3Client.GetTotalMessageCount();
for (int emailCounter = 1; emailCounter < totalCount + 1; emailCounter++)
{
	Pop3Message mg = pop3Client.GetMessage(emailCounter);
	sr.WriteLine(mg.Subject);
}
pop3Client.ExecuteQuit();
Console.WriteLine("Finished!");
sr.Close();
Console.ReadLine();

I tryed diffrent class for reading pop3 email still same result. The exchange server is 2010.