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  • c#邮箱发送和接收

    简洁版发送：

    //web.config ---文件

    <?xml version="1.0" encoding="utf-8"?>

    <!--
    有关如何配置 ASP.NET 应用程序的详细信息，请访问
    http://go.microsoft.com/fwlink/?LinkId=169433
    -->

    <configuration>
    <appSettings>
    <add key="email" value="15054590260@163.com"/>
    <add key="password" value="1c2s1/2h"/>

    </appSettings>
    <system.web>
    <compilation debug="false" targetFramework="4.5" />
    <httpRuntime targetFramework="4.5" />
    </system.web>

    </configuration>

    //Defult.aspx  ---文件

    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

    <!DOCTYPE html>

    <html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
    </head>
    <body>
    <form id="form1" runat="server">
    邮件发送<br />
    <br />
    接收人：<asp:TextBox ID="tetTo" runat="server" Width="348px"></asp:TextBox>
    <br />
    <br />
    邮件标题：<asp:TextBox ID="tetSubject" runat="server" Width="330px"></asp:TextBox>
    <br />
    <br />
    邮件内容：<br />
    <asp:TextBox ID="tetBody" runat="server" Height="164px" Width="408px"></asp:TextBox>
    <br />
    <asp:Button ID="Button1" runat="server" Text="发送" OnClick="Button1_Click" />
    </form>
    </body>
    </html>



    //Defult.aspx.cs ---文件
    using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Mail;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        //发送邮件
        SmtpClient smtp = new SmtpClient("smtp.163.com");
        //设置邮件类型（1.发送者 2.接受者 3.邮件体 4.登录信息）
        //1.
        string address = System.Configuration.ConfigurationManager.AppSettings["email"].ToString();
        MailAddress from = new MailAddress(address);

        //2.
        MailAddress to = new MailAddress(tetTo.Text);

        //3.
        MailMessage mail = new MailMessage(from,to);
        mail.Subject = tetSubject.Text;
        mail.Body = tetBody.Text;
        //4.
        string pwd = System.Configuration.ConfigurationManager.AppSettings["password"].ToString();
        NetworkCredential cred = new NetworkCredential(address,pwd);
        smtp.Credentials = cred;

        smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
        //发送
        smtp.Send(mail);
    }
}

    二、完全版发送接收：（在这个方法中需要用到OpenPop.dll文件 链接：http://pan.baidu.com/s/1bnwjWJH）

    //default.aspx   ---文件

    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

    <!DOCTYPE html>

    <html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
    </head>
    <body>
    <form id="form1" runat="server">
    <div>

    <asp:Repeater ID="Repeater1" runat="server">
    <HeaderTemplate>
    <ul>
    </HeaderTemplate>
    <FooterTemplate>
    </ul>
    </FooterTemplate>
    <ItemTemplate>
    <li>
    <a href="Details.aspx?id=<%# Eval("NO") %>">
    <%# Eval("Subject") %>
    <%--<%# ((DateTime)Eval("Date")).ToString("yyyy年MM月dd日hh时mm分ss秒") %>--%>
    <% Eval("Date","{0:yyyy年MM月dd日hh时mm分ss秒}") %>
    <%# Eval("FromSender") %>(<%# Eval("FromAddress") %>)
    </a>
    </li>
    </ItemTemplate>
    </asp:Repeater>

    </div>
    </form>
    </body>
    </html>

    //default.aspx.cs  ---文件

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using OpenPop.Pop3;
    using OpenPop.Mime;
    public partial class _Default : System.Web.UI.Page
    {
    protected void Page_Load(object sender, EventArgs e)
    {
    List<MailItem> list = new List<MailItem>();

    //实例化pop3访问对象
    Pop3Client pop3 = new Pop3Client();
    //链接到邮件服务器
    pop3.Connect("pop3.sina.com",110,false);
    //身份验证
    pop3.Authenticate("z1n10527@sina.com","abcde12345");

    //读邮件列表
    //1.获取邮件的个数
    int count = pop3.GetMessageCount();
    //2.遍历显示出来
    for (int i = 1; i <= count; i++)
    {
    Message msg = pop3.GetMessage(i);
    MailItem data = new MailItem();
    data.NO = i;
    data.FromAddress = msg.Headers.From.Address;//发送者的邮箱地址
    data.FromSender = msg.Headers.From.DisplayName;//发送者的名子
    data.Date = msg.Headers.DateSent;//邮件的发送时间
    data.Subject = msg.Headers.Subject;//邮件的主题
    data.Body = msg.MessagePart.GetBodyAsText();
    list.Add(data);
    }
    //断开链接
    pop3.Disconnect();

    //绑定显示
    Repeater1.DataSource = list;
    Repeater1.DataBind();
    }
    }

    public class MailItem
    {
    public int NO { get; set; }
    public string FromSender { get; set; }
    public string FromAddress { get; set; }
    public DateTime Date { get; set; }
    public string Subject { get; set; }
    public string Body { get; set; }
    }

    //details.aspx   ---文件

    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Details.aspx.cs" Inherits="Details" %>

    <!DOCTYPE html>

    <html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
    </head>
    <body>
    <form id="form1" runat="server">
    <div>

    标题：<asp:Label ID="lblSubject" runat="server" Text="Label"></asp:Label>
    <br />
    发送者：<asp:Label ID="lblSender" runat="server" Text="Label"></asp:Label>
    <br />
    时间：<asp:Label ID="lblDate" runat="server" Text="Label"></asp:Label>
    <br />
    内容：<br />
    <asp:Label ID="lblBody" runat="server" Text="Label"></asp:Label>
    <br />

    </div>
    </form>
    </body>
    </html>



    //details.aspx.cs  ---文件

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using OpenPop.Pop3;
using OpenPop.Mime;
public partial class Details : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (Request["id"] != null)
        {
            //获取邮件代号
            int no = Convert.ToInt32(Request["id"]);
            //根据邮件代号查找邮件
            Pop3Client pop3 = new Pop3Client();
            pop3.Connect("pop3.sina.com",110,false);
            pop3.Authenticate("z1n10527@sina.com","abcde12345");
            Message msg =pop3.GetMessage(no);
            //显示
            lblSubject.Text = msg.Headers.Subject;
            lblSender.Text = msg.Headers.From.DisplayName + msg.Headers.From.Address;
            lblDate.Text = msg.Headers.DateSent.ToString();
            lblBody.Text = msg.MessagePart.GetBodyAsText();
            //断开链接
            pop3.Disconnect();
        }
    }
}

    　　

    

    

    一、邮件发送：.NET中自带SMTP邮件发送的类——SmtpClient
    

    第一步：导入命名空间：
    

    using System.Net.Mail;
    using System.Net;
    

    第二步：编写邮件发送代码：
    

    //1.实例化发邮件的类
    SmtpClient smtp = new SmtpClient("smtp.sina.com");
    

    //2.构建邮件对象。邮件对象常见的一般包括：发送邮箱，接收邮箱，标题，内容四大部分
    

    MailAddress from = new MailAddress("z1n10527@sina.com"); //发送者的邮箱地址
    MailAddress to = new MailAddress("z1n10426@sina.com"); //接收者的邮箱地址
    MailMessage mail = new MailMessage(from, to); //实例化邮件对象
    mail.Subject = txtSubject.Text; //邮件的标题
    mail.Body = txtBody.Text;  //邮件的内容
    

    //3.设置邮箱登录验证凭据
    

    NetworkCredential cred = new NetworkCredential("发送者的邮箱用户名","发送者的邮箱密码"); //创建凭据对象
    smtp.Credentials = cred; //把凭据对象赋给邮件发送类
    

    //4.发送
    

    smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
    smtp.Send(mail);
    

    二、邮件接收：.NET中没有POP3邮件接收的类，邮件的内容和格式比复杂，手动写代码进行解析很麻烦，也容易出错，开发中我们可以借助第三方插件来实现。
    

    OpenPOP.NET插件的地址：http://sourceforge.net/projects/hpop/
    

    第一步：添加引用：OpenPop.dll
    

    第二步：导入命名空间：
    

    

    using OpenPop.Pop3;
using OpenPop.Mime;

    

    

    第三步：编写邮件实体类：
    

    

    public class MailItem
{
public int NO { get; set; }
public string FromSender { get; set; }
public string FromAddress { get; set; }
public DateTime Date { get; set; }
public string Subject { get; set; }
public string Body { get; set; }
}

    

    

    第四步：编写邮件读取代码
    

    

    protected void Page_Load(object sender, EventArgs e)
    {
        List<MailItem> list = new List<MailItem>();

        //实例化pop3访问对象
        Pop3Client pop3 = new Pop3Client();
        //链接到邮件服务器
        pop3.Connect("pop3.sina.com",110,false);
        //身份验证
        pop3.Authenticate("z1n10527@sina.com","abcde12345");

        //读邮件列表
        //1.获取邮件的个数
        int count = pop3.GetMessageCount();
        //2.遍历显示出来
        for (int i = 1; i <= count; i++)
        {
            Message msg = pop3.GetMessage(i);
            MailItem data = new MailItem();
            data.NO = i;
            data.FromAddress = msg.Headers.From.Address;//发送者的邮箱地址
            data.FromSender = msg.Headers.From.DisplayName;//发送者的名子
            data.Date = msg.Headers.DateSent;//邮件的发送时间
            data.Subject = msg.Headers.Subject;//邮件的主题
            data.Body = msg.MessagePart.GetBodyAsText();
            list.Add(data);
        }
        //断开链接
        pop3.Disconnect();

        //绑定显示
        Repeater1.DataSource = list;
        Repeater1.DataBind();
    }
}

    

    


    
    
                
    
                
              
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                原文地址：https://www.cnblogs.com/shaobing012/p/4864149.html
              
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