public event LogNewEntryEventHandler LogNewEntry

Public Event LogNewEntry As LogNewEntryEventHandler

using System;
using MailBee;
using MailBee.Pop3Mail;

class Sample
{
    // LogNewEntry event handler.
    private static void OnLogNewEntry(object sender, LogNewEntryEventArgs e)
    {
        if ( !(e.NewEntry.MessageType == LogMessageType.Recv ||
            e.NewEntry.MessageType == LogMessageType.Send) )
        {
            // Do not add this entry if it does not indicate any data transfer,
            // and put our own message instead.
            e.NewEntry.AddThisEntry = false;
            ((Pop3)sender).Log.WriteLine("UNWANTED MESSAGE REMOVED");

            // Note: we could produce similar results just by writing new values
            // into MessageText and MessageComment properties of the original entry.
            // The code above uses Log.WriteLine method just to show how to add new
            // entries in the event handler itself. You may comment 2 code lines above
            // and uncomment 2 code lines below to use the alternate approach.
            // 
            // e.NewEntry.MessageText = "UNWANTED MESSAGE REMOVED";
            // e.NewEntry.MessageComment = string.Empty;
        }
    }

    // The actual code
    static void Main(string[] args)
    {
        Pop3 pop = new Pop3();

        // Enable logging the POP3 session into a file.
        pop.Log.Enabled = true;
        pop.Log.Filename = @"C:\Temp\log.txt";
        pop.Log.Clear();

        // Subscribe to the LogNewEntry event.
        pop.LogNewEntry += new LogNewEntryEventHandler(OnLogNewEntry);

        // Do something which would produce some network traffic.
        pop.Connect("mail.domain.com");
        pop.Login("jdoe", "secret");
        pop.Disconnect();
    }
}

Imports System
Imports MailBee
Imports MailBee.Pop3Mail

Public Class Sample
    ' LogNewEntry event handler.
    Private Shared Sub OnLogNewEntry(ByVal sender As Object, ByVal e As LogNewEntryEventArgs)
        If Not (e.NewEntry.MessageType = LogMessageType.Recv Or _
            e.NewEntry.MessageType = LogMessageType.Send) Then
            ' Do not add this entry if it does not indicate any data transfer,
            ' and put our own message instead.
            e.NewEntry.AddThisEntry = False
            sender.Log.WriteLine("UNWANTED MESSAGE REMOVED");

            ' Note: we could produce similar results just by writing new values
            ' into MessageText and MessageComment properties of the original entry.
            ' The code above uses Log.WriteLine method just to show how to add new
            ' entries in the event handler itself. You may comment 2 code lines above
            ' and uncomment 2 code lines below to use the alternate approach.
            '
            ' e.NewEntry.MessageText = "UNWANTED MESSAGE REMOVED"
            ' e.NewEntry.MessageComment = String.Empty
        End If
    End Sub

    ' The actual code.
    Shared Sub Main(ByVal args As String())
        Dim pop As New Pop3

        ' Enable logging the POP3 session into a file.
        pop.Log.Enabled = True
        pop.Log.Filename = "C:\Temp\log.txt"
        pop.Log.Clear()

        ' Subscribe to the LogNewEntry event.
        AddHandler pop.LogNewEntry, AddressOf OnLogNewEntry

        ' Do something which would produce some network traffic.
        pop.Connect("mail.domain.com")
        pop.Login("jdoe", "secret")
        pop.Disconnect()
    End Sub
End Class