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={248DD890-BB45-11CF-9ABC-0080C7E7B78D}#1.0#0; MSWINSCK.OCX
Form=frmmail.frm
Startup="Form1"
HelpFile=""
Title="Email发送"
ExeName32="Email.exe"
Command32=""
Name="Email"
HelpContextID="0"
CompatibleMode="0"
MajorVer=1
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 2002 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=1

[MS Transaction Server]
AutoRefresh=1

frmMail.frm
-----------------------------------------
VERSION 5.00
Object = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}#1.0#0"; "MSWINSCK.OCX"
Begin VB.Form Form1
   BorderStyle     =   1  'Fixed Single
   Caption         =   "邮件发送程序(支持smtp服务器验证)"
   ClientHeight    =   5550
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   5805
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   ScaleHeight     =   5550
   ScaleWidth      =   5805
   StartUpPosition =   3  'Windows Default
   Begin MSWinsockLib.Winsock Winsock1
      Left            =   2640
      Top             =   2520
      _ExtentX        =   741
      _ExtentY        =   741
      _Version        =   393216
   End
   Begin VB.TextBox txtmessage1
      Height          =   1695
      Left            =   0
      MultiLine       =   -1  'True
      TabIndex        =   8
      Text            =   "frmmail.frx":0000
      ToolTipText     =   "这里为超文本信件内容"
      Top             =   3480
      Width           =   5775
   End
   Begin VB.TextBox user
      Height          =   270
      Left            =   3960
      TabIndex        =   4
      Top             =   840
      Width           =   1575
   End
   Begin VB.TextBox subject
      Height          =   270
      Left            =   960
      TabIndex        =   3
      Text            =   "你好"
      Top             =   1320
      Width           =   2295
   End
   Begin VB.TextBox txtserver
      Height          =   270
      Left            =   960
      TabIndex        =   2
      Text            =   "smtp.etang.com"
      Top             =   960
      Width           =   2295
   End
   Begin VB.TextBox txtpwa
      Height          =   270
      IMEMode         =   3  'DISABLE
      Left            =   3960
      PasswordChar    =   "*"
      TabIndex        =   5
      Top             =   1200
      Width           =   1575
   End
   Begin VB.TextBox getaddress
      Height          =   300
      Left            =   960
      TabIndex        =   1
      Top             =   600
      Width           =   2295
   End
   Begin VB.TextBox txtfrom
      Height          =   300
      Left            =   960
      TabIndex        =   0
      Top             =   240
      Width           =   2295
   End
   Begin VB.CommandButton cmdExit
      Caption         =   "退出"
      Height          =   375
      Left            =   4680
      TabIndex        =   9
      Top             =   240
      Width           =   975
   End
   Begin VB.CommandButton CmdSend
      Caption         =   "发送"
      Default         =   -1  'True
      Height          =   375
      Left            =   3360
      TabIndex        =   6
      Top             =   240
      Width           =   975
   End
   Begin VB.TextBox txtMessage
      Height          =   1815
      Left            =   0
      MultiLine       =   -1  'True
      TabIndex        =   7
      Text            =   "frmmail.frx":0A1E
      ToolTipText     =   "信件内容"
      Top             =   1680
      Width           =   5775
   End
   Begin VB.Label Label6
      AutoSize        =   -1  'True
      Caption         =   "用户名"
      Height          =   180
      Left            =   3360
      TabIndex        =   16
      Top             =   840
      Width           =   540
   End
   Begin VB.Label StatusTxt
      AutoSize        =   -1  'True
      BackStyle       =   0  'Transparent
      BorderStyle     =   1  'Fixed Single
      Height          =   285
      Left            =   960
      TabIndex        =   15
      Top             =   5200
      Width           =   3375
   End
   Begin VB.Label Label5
      AutoSize        =   -1  'True
      Caption         =   "主题:"
      Height          =   180
      Left            =   240
      TabIndex        =   14
      Top             =   1320
      Width           =   450
   End
   Begin VB.Label Label4
      AutoSize        =   -1  'True
      Caption         =   "SMTP服务器"
      Height          =   180
      Left            =   0
      TabIndex        =   13
      Top             =   960
      Width           =   900
   End
   Begin VB.Label Label3
      AutoSize        =   -1  'True
      Caption         =   "密码"
      Height          =   180
      Left            =   3360
      TabIndex        =   12
      Top             =   1200
      Width           =   360
   End
   Begin VB.Label Label2
      AutoSize        =   -1  'True
      Caption         =   "收信人地址"
      Height          =   180
      Left            =   0
      TabIndex        =   11
      Top             =   600
      Width           =   900
   End
   Begin VB.Label Label1
      AutoSize        =   -1  'True
      Caption         =   "发信人地址"
      Height          =   180
      Left            =   0
      TabIndex        =   10
      Top             =   240
      Width           =   900
   End
End
Attribute VB_Name = "Form1"
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