不想另外安装第三方的发邮件组件，想直接利用MS的。

请问在VB里如何用MAPI来发送邮件（好像MAPI是OUTLOOK和OE自带有的吧），需要像在OE里发邮件一样先手工设置好发信帐号吗？能不能像JMAIL一样在发信时指定SMTP服务器及发信验证用户名和密码？

哪里有CDONTS发邮件的源码？我需要能指定发邮件的SMTP及认证用户名和密码的那个版本的，这就相当于JMAIL能实现的功能了，好像低版本的CDO不支持，汗~~~~~

下面是使用winsock实现的发送邮件，但其它问题仍未解决，等待高手

eSTMP.vbp
-------------------------------------------
Type=Exe
Object={8DD890-BB-CF-9ABC-0080C7E7B78D}#.0#0; MSWINSCK.OCX
Form=frmmail.frm
Startup="Form"
HelpFile=""
Title="Email发送"
ExeName="Email.exe"
Command=""
Name="Email"
HelpContextID="0"
CompatibleMode="0"
MajorVer=
MinorVer=0
RevisionVer=0
AutoIncrementVer=0
ServerSupportFiles=0
VersionCompanyName="dapha.net"
VersionFileDescription="Email发送,支持服务器认证，超文本邮件内容"
VersionLegalCopyright="Copyright 00 dapha.net"
VersionProductName="Email发送软件"
CompilationType=0
OptimizationType=0
FavorPentiumPro(tm)=0
CodeViewDebugInfo=0
NoAliasing=0
BoundsCheck=0
OverflowCheck=0
FlPointCheck=0
FDIVCheck=0
UnroundedFP=0
StartMode=0
Unattended=0
Retained=0
ThreadPerObject=0
MaxNumberOfThreads=

[MS Transaction Server]
AutoRefresh=

frmMail.frm
-----------------------------------------
VERSION .00
Object = "{8DD890-BB-CF-9ABC-0080C7E7B78D}#.0#0"; "MSWINSCK.OCX"
Begin VB.Form Form
   BorderStyle     =     'Fixed Single
   Caption         =   "邮件发送程序(支持smtp服务器验证)"
   ClientHeight    =   0
   ClientLeft      =  
   ClientTop       =   0
   ClientWidth     =   80
   LinkTopic       =   "Form"
   MaxButton       =   0   'False
   ScaleHeight     =   0
   ScaleWidth      =   80
   StartUpPosition =     'Windows Default
   Begin MSWinsockLib.Winsock Winsock
      Left            =   60
      Top             =   0
      _ExtentX        =   7
      _ExtentY        =   7
      _Version        =   96
   End
   Begin VB.TextBox txtmessage
      Height          =   69
      Left            =   0
      MultiLine       =   -  'True
      TabIndex        =   8
      Text            =   "frmmail.frx":0000
      ToolTipText     =   "这里为超文本信件内容"
      Top             =   80
      Width           =   77
   End
   Begin VB.TextBox user
      Height          =   70
      Left            =   960
      TabIndex        =  
      Top             =   80
      Width           =   7
   End
   Begin VB.TextBox subject
      Height          =   70
      Left            =   960
      TabIndex        =  
      Text            =   "你好"
      Top             =   0
      Width           =   9
   End
   Begin VB.TextBox txtserver
      Height          =   70
      Left            =   960
      TabIndex        =  
      Text            =   "smtp.etang.com"
      Top             =   960
      Width           =   9
   End
   Begin VB.TextBox txtpwa
      Height          =   70
      IMEMode         =     'DISABLE
      Left            =   960
      PasswordChar    =   "*"
      TabIndex        =  
      Top             =   00
      Width           =   7
   End
   Begin VB.TextBox getaddress
      Height          =   00
      Left            =   960
      TabIndex        =  
      Top             =   600
      Width           =   9
   End
   Begin VB.TextBox txtfrom
      Height          =   00
      Left            =   960
      TabIndex        =   0
      Top             =   0
      Width           =   9
   End
   Begin VB.CommandButton cmdExit
      Caption         =   "退出"
      Height          =   7
      Left            =   680
      TabIndex        =   9
      Top             =   0
      Width           =   97
   End
   Begin VB.CommandButton CmdSend
      Caption         =   "发送"
      Default         =   -  'True
      Height          =   7
      Left            =   60
      TabIndex        =   6
      Top             =   0
      Width           =   97
   End
   Begin VB.TextBox txtMessage
      Height          =   8
      Left            =   0
      MultiLine       =   -  'True
      TabIndex        =   7
      Text            =   "frmmail.frx":0AE
      ToolTipText     =   "信件内容"
      Top             =   680
      Width           =   77
   End
   Begin VB.Label Label6
      AutoSize        =   -  'True
      Caption         =   "用户名"
      Height          =   80
      Left            =   60
      TabIndex        =   6
      Top             =   80
      Width           =   0
   End
   Begin VB.Label StatusTxt
      AutoSize        =   -  'True
      BackStyle       =   0  'Transparent
      BorderStyle     =     'Fixed Single
      Height          =   8
      Left            =   960
      TabIndex        =  
      Top             =   00
      Width           =   7
   End
   Begin VB.Label Label
      AutoSize        =   -  'True
      Caption         =   "主题:"
      Height          =   80
      Left            =   0
      TabIndex        =  
      Top             =   0
      Width           =   0
   End
   Begin VB.Label Label
      AutoSize        =   -  'True
      Caption         =   "SMTP服务器"
      Height          =   80
      Left            =   0
      TabIndex        =  
      Top             =   960
      Width           =   900
   End
   Begin VB.Label Label
      AutoSize        =   -  'True
      Caption         =   "密码"
      Height          =   80
      Left            =   60
      TabIndex        =  
      Top             =   00
      Width           =   60
   End
   Begin VB.Label Label
      AutoSize        =   -  'True
      Caption         =   "收信人地址"
      Height          =   80
      Left            =   0
      TabIndex        =  
      Top             =   600
      Width           =   900
   End
   Begin VB.Label Label
      AutoSize        =   -  'True
      Caption         =   "发信人地址"
      Height          =   80
      Left            =   0
      TabIndex        =   0
      Top             =   0
      Width           =   900
   End
End
Attribute VB_Name = "Form"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False

'程序组合：dapha(汪锋)
'下载http://www.dapha.net
'我是一名VB爱好者，希望得到大家的帮助，共同学习，进步
'转摘请保留以上信息，谢谢合作
Private Enum SMTP_State
    MAIL_CONNECT
    MAIL_HELO
    MAIL_from
    MAIL_RCPTTO
    MAIL_DATA
    MAIL_DOT
    MAIL_QUIT
    MAIL_USER
    MAIL_PASS
    mail_login
End Enum
Private m_State As SMTP_State
Private m_strEncodedFiles As String