ＰＯＰ３プロキシ用ログフォルダです。 
セッション毎のデータ受信毎に以下のような、記録が行われます。 

[フォルダ]
環境変数"ALLUSERSPROFILE"
　└ VMCS
　　　└ pop3log 　　ＰＯＰ３プロキシ用ログフォルダ[ログ]
[11:41:27:406]  (1.17) Copyright 2008-2009 K-TEC Inc. All rights reserved.　←　プログラム開始の記録

[11:41:27:406] Connection = 0
[11:41:27:406] IP version = IPv4,IPv6　←　接続可能なIPバージョン
[11:41:27:406] Timeout Client(Plain) = 30000　←　接続クライアントとの無通信タイムアウト時間（プレーン時）単位ミリ秒
[11:41:27:406] Timeout Client(SSL)   = 30000　←　接続クライアントとの無通信タイムアウト時間（暗号化時）単位ミリ秒
[11:41:27:406] Timeout Server(Plain) = 30000　←　接続サーバとの無通信タイムアウト時間（プレーン時）単位ミリ秒
[11:41:27:406] Timeout Server(SSL)   = 30000　←　接続サーバとの無通信タイムアウト時間（暗号化時）単位ミリ秒
[11:41:27:406] Virus Mail deleted = On.
[11:41:27:406] Log Folder = C:\Documents and Settings\All Users\VMCS\pop3log　←　ログの保管フォルダ
[11:41:27:421] [AcceptClients] table=192.168.1.15 14110
[11:41:27:421] [AcceptClients] table=192.168.1.15 8210
[11:41:27:421] [AcceptClients] table=192.168.1.15 11110
[11:41:27:421] [AcceptClients] table=192.168.1.15 13110
[11:41:27:421] [AcceptClients] table=192.168.1.15 13995
[11:41:27:421] [AcceptClients] table=192.168.1.15 10110
[11:41:27:421] [AcceptClients] table=192.168.1.15 12110
[11:41:27:421] [AcceptClients] listen=192.168.1.15 14110　←　リッスン:ポートIP(1)
[11:41:27:437] [AcceptClients] listen=192.168.1.15 8210　←　リッスン:ポートIP(2)
[11:41:27:437] [AcceptClients] listen=192.168.1.15 11110　←　リッスン:ポートIP(3)
[11:41:27:437] [AcceptClients] listen=192.168.1.15 13110　←　リッスン:ポートIP(4)
[11:41:27:437] [AcceptClients] listen=192.168.1.15 13995　←　リッスン:ポートIP(5)
[11:41:27:437] [AcceptClients] listen=192.168.1.15 10110　←　リッスン:ポートIP(6)
[11:41:27:437] [AcceptClients] listen=192.168.1.15 12110　←　リッスン:ポートIP(7)
[11:41:27:484] [AcceptClients] host.domain=[xxxxxxxx.jp]
[11:41:27:484] [AcceptClients] wait select()
[11:43:37:921] [AcceptClients] wait accept()
  :
  :[プレーン通信時の記録]
[11:43:37:921] [AcceptClients] start accept()
[11:43:37:921] [AcceptClients] Accept Client sokect.(00000714)(00000758) ←　セッションの発生
[11:43:37:937] [AcceptClients] [0015eff0] memory alloc()
[11:43:37:937] [AcceptClients] Connect from [192.168.1.15] ←　接続元
[11:43:37:937] [AcceptClients] wait select()
[11:43:37:937] [AcceptClients] [0015eff0] START[00000714]
[11:43:37:937] [Query_SURBLists] [Hit] ＸＸＸＸＸＸ
[11:43:37:937] [ConnectHost] Winsock connect success. Server=xxx.xxxxx.jp
[11:43:37:937] [TelnetDispatch] [1776] sender connect success.
[11:43:37:937] [ServerToClientSession] Start. sockSv=1776, sockCl=1812
[11:43:37:953] [ServerToClientSession] S:recv(1776):82 bytes.
[11:43:37:953] +OK XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

[11:43:37:953] [ServerToClientSession] C:send(1812):82 bytes.
[11:43:37:953] [ClientToServerSession] Start. sockCl=1812, sockSv=1776
[11:43:37:953] [ClientToServerSession] C:recv(1812):22 bytes.
[11:43:37:953] USER XXXXXXXXXXXXXXXXXXX

[11:43:37:953] [ClientToServerSession] C:send(1776):22 bytes.
[11:43:37:953] [ServerToClientSession] Start. sockSv=1776, sockCl=1812
[11:43:37:968] [ServerToClientSession] S:recv(1776):43 bytes.
[11:43:37:968] +OK Password required for XXXXXXXXXXXXX

[11:43:37:968] [ServerToClientSession] C:send(1812):43 bytes.
[11:43:37:968] [ClientToServerSession] Start. sockCl=1812, sockSv=1776
[11:43:37:968] [ClientToServerSession] C:recv(1812):17 bytes.
[11:43:37:968] PASS XXXXXXXXXXXXXXXXX

[11:43:37:968] [ClientToServerSession] C:send(1776):17 bytes.
[11:43:37:968] [ServerToClientSession] Start. sockSv=1776, sockCl=1812
[11:43:37:984] [ServerToClientSession] S:recv(1776):61 bytes.
[11:43:37:984] +OK XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

[11:43:37:984] [ServerToClientSession] C:send(1812):61 bytes.
[11:43:37:984] [ClientToServerSession] Start. sockCl=1812, sockSv=1776
[11:43:37:984] [ClientToServerSession] C:recv(1812):6 bytes.
[11:43:37:984] STAT

[11:43:37:984] [ClientToServerSession] C:send(1776):6 bytes.
[11:43:37:984] [ServerToClientSession] Start. sockSv=1776, sockCl=1812
[11:43:38:000] [ServerToClientSession] S:recv(1776):11 bytes.
[11:43:38:000] +OK 1 761

[11:43:38:000] [ServerToClientSession] C:send(1812):11 bytes.
[11:43:38:015] [ClientToServerSession] Start. sockCl=1812, sockSv=1776
[11:43:38:125] [ClientToServerSession] C:recv(1812):6 bytes.
[11:43:38:125] LIST

[11:43:38:125] [ClientToServerSession] C:send(1776):6 bytes.
[11:43:38:125] [ServerToClientSession] Start. sockSv=1776, sockCl=1812
[11:43:38:140] [ServerToClientSession] S:recv(1776):39 bytes.
[11:43:38:140] +OK 1 messages (761 octets)

1 761

.

[11:43:38:140] [ServerToClientSession] C:send(1812):29 bytes.
[11:43:38:140] [ServerToClientSession] C:send(1812):7 bytes.
[11:43:38:140] [ServerToClientSession] C:send(1812):3 bytes.
[11:43:38:140] [ClientToServerSession] Start. sockCl=1812, sockSv=1776
[11:43:38:140] [ClientToServerSession] C:recv(1812):8 bytes.
[11:43:38:140] RETR 1

[11:43:38:140] [ClientToServerSession] C:send(1776):8 bytes.
[11:43:38:140] [ServerToClientSession] Start. sockSv=1776, sockCl=1812
[11:43:38:156] [ServerToClientSession] S:recv(1776):16 bytes.
[11:43:38:156] +OK 761 octets

[11:43:38:359] [ServerToClientSession] S:recv(1776):761 bytes.
[11:43:38:359] [ScanSpamFile] [1776] C:\Documents and Settings\All Users\VMCS\cache\req-2-1812.dat --- CLEAN　←　スパムチェックの結果
[11:43:38:359] [ServerToClientSession] [1776] [RETR 1] SPAM result [CLEAN]
[11:43:38:484] [ScanFile] [1776] C:\Documents and Settings\All Users\VMCS\cache\req-2-1812.dat --- CLEAN　←　ウイルスチェックの結果
[11:43:38:484] [ServerToClientSession] [1776] [RETR 1] VIRUS result [CLEAN]
  :
[11:43:38:515] [ServerToClientSession] C:send(1812):5 bytes.
[11:43:38:515] [ClientToServerSession] Start. sockCl=1812, sockSv=1776
[11:43:38:531] [ClientToServerSession] C:recv(1812):6 bytes.
[11:43:38:531] QUIT

[11:43:38:531] [ClientToServerSession] C:send(1776):6 bytes.
[11:43:38:531] [ServerToClientSession] Start. sockSv=1776, sockCl=1812
[11:43:38:531] [ServerToClientSession] S:recv(1776):58 bytes.
[11:43:38:531] +OK xxxxxxxx.jp POP3 server signing off (mailbox empty)

[11:43:38:531] [ServerToClientSession] C:send(1812):58 bytes.
[11:43:38:546] [TelnetDispatch] [1776] sender close socket.
[12:06:57:843] [AcceptClients] wait accept()
  :
  :[暗号化通信時の記録]
[12:06:57:843] [AcceptClients] start accept()
[12:06:57:843] [AcceptClients] Accept Client sokect.(000006fc)(00000760)
[12:06:57:843] [AcceptClients] [0015eff0] memory alloc()
[12:06:57:843] [AcceptClients] Connect from [192.168.1.15]
[12:06:57:859] [AcceptClients] wait select()
[12:06:57:859] [AcceptClients] [0015eff0] START[000006fc]
[12:06:57:859] [Query_SURBLists] [Hit] ＸＸＸＸＸＸ
[12:06:57:859] [ConnectHost] Winsock connect success. Server=192.168.1.12
[12:06:57:859] [TelnetDispatch] [1804] sender connect success.
[12:06:57:859] [ClientSession] [1804] Strat ClientSession(1788).
[12:06:57:859] [ServerSession] [1788] Strat ServerSession(1804).
[12:06:57:859] [ServerSession] C:recv(1788):102 bytes tunneling.　←　暗号化されたデータ102byteを受信
[12:06:57:859] [ServerSession] S:send(1804):102 bytes tunneling.　←　暗号化されたデータ102byteを送信
  :
[12:06:58:781] [ServerSession] C:recv(1788):0 bytes tunneling. / WSAGetLastError() = 0
[12:06:58:781] [ClientSession] S:recv(1804):0 bytes tunneling. / WSAGetLastError() = 0
[12:06:58:781] [ServerSession] [1788] End ServerSession(1804).　←　サーバー側セッションの完了。
[12:06:58:781] [ClientSession] [1804] End ClientSession(1788).　←　クライアント側セッションの完了。