asp.net 2.0发送和接收邮件总结

总结:.用asp.net 2.0发送邮件非常的方便,只需要用using System.Net.Mail命名空间下的类就可以完成发送邮件的功能,发送邮件的服务器可以有以下几种情况:
1.本地的smtp服务器
2.网络上的smtp服务器(smtp.163.com等)
以下是我测试发送邮件的范例,基本上都考虑到的所有的情况,如果还有什么没有考虑到的请给我留言,我接续完善其功能.
1.新建一网站名字叫SentEmailText.
2.添加一个新的页面default.aspx
代码如下:

< form  id ="Form1"  runat ="server"  method ="post" >
      < div  id ="content" >
                  < div  id ="msg" >
                     < div  id ="msg_title" > Send Email Test </ div >
                     < div  id ="msg_prompt" ></ div >
                     < asp:ValidationSummary  id ="msg_alarm"  runat ="server" ></ asp:ValidationSummary >
                 </ div >
                 < div  id ="form" >
                      < div >
                         < label  for ="SmtpServerText" > Sever name: </ label >
                         < input  type ="text"   id ="SmtpServerText"  name ="SmtpServerText"  runat ="server"   />
                     </ div >
                      < div >
                         < label  for ="SmtpServerPort" > Sever Port: </ label >
                         < input  type ="text"  id ="SmtpServerPort"   name ="SmtpServerPort"  runat ="server"   />
                     </ div >
                      < div >
                         < label  for ="UserName" > User Name: </ label >
                         < input  type ="text"   name ="UserName"  id ="UserName"  runat ="server"   />
                     </ div >
                      < div >
                         < label  for ="Pwd" > Pwd: </ label >
                         < input  type ="text"   name ="Pwd"  runat ="server"  id ="Pwd"   />
                     </ div >
                      < div >
                         < label  for ="FromAddress" > From Address: </ label >
                         < input  type ="text"   name ="FromAddress"  runat ="server"  id ="FromAddress"   />
                     </ div >
                      < div >
                         < label  for ="SendAddress" > Send Address: </ label >
                         < input  type ="text"   name ="SendAddress"  runat ="server"  id ="SendAddress"   />
                     </ div >
                      < div >
                         < label  for ="attachment" > Attachment: </ label >
                         < input  type ="file"  runat ="server"  name ="attachment"  id ="attachment"   />
                     </ div >
                      < div >
                         < label  for ="txtSubject" > Email Subject: </ label >
                         < input  type ="text"   name ="txtSubject"  runat ="server"  id ="txtSubject"   />
                     </ div >
                     < div >
                         < label  for ="txtBody" > Email Body: </ label >
                         < textarea  name ="txtBody"  runat ="server"  rows ="10"  cols ="50"  id ="txtBody" ></ textarea >
                     </ div >
                     < div >
                         &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;   &nbsp;
                         < input  type ="submit"  value ="Send Email"  class ="prim"  id ="btnSend"  runat ="server"  onserverclick ="btnSend_ServerClick"   />
                     </ div >
                 </ div >
        </ div >
     </ form >

3.新建一个style的文件夹,添加样式页面,主要功能是表单的对齐样式,比较通用的设置(见附件)
4.添加一个mail的类文件,注意用于发送邮件考虑的几种情况(见附件)

using  System;
using  System.Text; 
using  System.Net.Mail;
using  System.Net.Sockets;
using  System.IO;
public   class  Mail
{
  "Custom var"#region "Custom var"
        private string _User;
        private string _Pwd;
        private string _Host;
        private int _Port;
  #endregion

  "Property"#region "Property"
        public int Port
        {
            get
            {
                return _Port;
            }
            set
            {
                _Port = value;
            }
        }
        public string User
        {
            get
            {
                return _User;
            }
            set
            {
                _User = value;
            }
        }
        public string Pwd
        {
            get
            {
                return _Pwd;
            }
            set
            {
                _Pwd = value;
            }
        }
        public string Host
        {
            get
            {
                return _Host;
            }
            set
            {
                _Host = value;
            }
        }
  #endregion

  "OverLoad"#region "OverLoad"
    public Mail(string user, string pwd,string host,int port)
    {//other smtp server including username and pwd
        this._User = user;
        this._Pwd = pwd;
        this._Host = host;
        this._Port = port;
    }
    public Mail(string host,int port)
    {//other smtp server but username and pwd
        this._Port = port;
        this._Host = host;
    }
    public Mail()
    {//local smtp server and port=25
        this._Port = 25;
        this._Host = "127.0.0.1";
    }
  #endregion

  "Send Emial including groups and attachment"#region "Send Emial including groups and attachment"
    /**//// <summary>
    /// Sent emails including attachment
    /// </summary>
    /// <param name="toUser">From Address</param>
    /// <param name="toMail">To Address</param>
    /// <param name="subject">The subject of Email</param>
    /// <param name="body">The body of Email</param>
    /// <param name="ishtml">Html Or Text</param>
    /// <param name="priority">The priority of Email</param>
    /// <param name="filenames">the attachment of email(optional)</param>
    public void SendMailWithAttachment(string toUser,string toMail, string subject, string body,bool ishtml,MailPriority priority,params string[] filenames)
    {
        System.Net.Mail.MailMessage msg = new System.Net.Mail.MailMessage(toUser,toMail,subject,body);                  
        msg.BodyEncoding = Encoding.UTF8;
        msg.Priority = priority;
        msg.IsBodyHtml = ishtml ;
        if (filenames != null)
        {
            foreach (string s in filenames)
            {
                msg.Attachments.Add(new Attachment(s));
            }
        }
        System.Net.Mail.SmtpClient sc = new SmtpClient(Host, Port);
        sc.EnableSsl = false;
        sc.Timeout = 3600000;
        sc.UseDefaultCredentials = false;
        sc.Credentials = new System.Net.NetworkCredential(_User, _Pwd);
        sc.DeliveryMethod = SmtpDeliveryMethod.Network;
        try
        {
            sc.Send(msg);
        }
        catch (Exception e)
        {
            throw e;
        }
    }
    /**//// <summary>
    /// Sent Email including groups and attachment
    /// </summary>
    /// <param name="toUser">From Address</param>
    /// <param name="toMail">To Address</param>
    /// <param name="subject">The subject of Email</param>
    /// <param name="body">The body of Email</param>
    /// <param name="ishtml">Html Or Text</param>
    /// <param name="priority">The priority of Email</param>
    /// <param name="filenames">The attachment of Email(optional)</param>
    public void SendMailWithGroupWithAttachment(string toUser,string toMail, string subject, string body,bool ishtml,MailPriority priority,params string[] filenames)
    {
        string[] toMails = toMail.Split(';');
        System.Net.Mail.MailMessage msg = new System.Net.Mail.MailMessage();
        msg.From=new MailAddress(toUser );
        foreach (string s in toMails)
        {
            msg.To.Add(s);
        }
        msg.Subject = subject;
        msg.Body = body;
        msg.BodyEncoding = Encoding.UTF8;
        msg.Priority = priority;
        msg.IsBodyHtml = ishtml;
        if (filenames != null)
        {
            foreach (string s in filenames)
                msg.Attachments.Add(new Attachment(s));
        }
        System.Net.Mail.SmtpClient sc = new SmtpClient(Host,Port);
        sc.EnableSsl = false;
        sc.Timeout = 3600000;
        sc.UseDefaultCredentials = false;
        sc.Credentials = new System.Net.NetworkCredential(_User, _Pwd);
        sc.DeliveryMethod = SmtpDeliveryMethod.Network;
        try
        {
            sc.Send(msg);
        }
        catch (Exception e)
        {
            throw e;
        }
    }
 #endregion

  /**//// <summary>
  /// Received Email
  /// </summary>
    public void ReseiveMail()
    {
        string ServerHost = "pop3."+this._Host ;
        TcpClient tcp = new TcpClient(ServerHost, 110);
        NetworkStream ns = tcp.GetStream();
        StreamReader sr = new StreamReader(ns);
        StreamWriter sw = new StreamWriter(ns);
     }
 }

5.页面调用方式参见附件
6.附件下载 附件(源代码下载)