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)