Check for Email on a POP3 Server

Download: Chilkat .NET Assemblies

C# source code to check for email on a POP3 server.

private void button1_Click(object sender, System.EventArgs e)
{
	Chilkat.MailMan mailman = new Chilkat.MailMan();
	mailman.UnlockComponent("UnlockCode");

	mailman.MailHost = "mail.chilkatsoft.com";
	mailman.PopUsername = "myLogin";
	mailman.PopPassword = "myPassword";

	// CheckMail returns an integer value equal to the number
	// of mail messages in the POP3 mailbox.
	// If CheckMail failed, a value of -1 is returned.
	// A failure can occur if the username/password is incorrect,
	// or the mail server is unreachable, etc.
	long numMessages = mailman.CheckMail();
	textBox1.Text = Convert.ToString(numMessages);
	if (numMessages == -1)
	{
		MessageBox.Show(mailman.LastErrorText);
	}


}