C#、ASP.NET、WinForm - 实现邮件发送的功能
转载自：http://www.cnblogs.com/mingmingruyuedlut/archive/2011/10/14/2212255.html
- 发送邮件所用的核心知识点
- 微软封装好的MailMessage类：主要处理发送邮件的内容（如：收发人地址、标题、主体、图片等等）
- 微软封装好的SmtpClient类：主要处理用smtp方式发送此邮件的配置信息（如：邮件服务器、发送端口号、验证方式等等）
- SmtpClient主要进行了三层的封装：Socket --> TcpClient --> SmtpClient
- 具体代码请看如下所示：
1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5 using System.Net.Mail;
6 using System.Net.Mime;
7 using System.IO;
8 using System.Timers;
9 using System.Xml;
10
11 namespace MyEmailTest
12 {
13 class Program
14 {
15 static void Main(string[] args)
16 {
17 try
18 {
19 //smtp.163.com
20 string senderServerIp = "123.125.50.133";
21 //smtp.gmail.com
22 //string senderServerIp = "74.125.127.109";
23 //smtp.qq.com
24 //string senderServerIp = "58.251.149.147";
25 //string senderServerIp = "smtp.sina.com";
26 string toMailAddress = "mingmingruyuedlut@163.com";
27 string fromMailAddress = "mingmingruyuedlut@163.com";
28 string subjectInfo = "Test sending e_mail";
29 string bodyInfo = "Hello Eric, This is my first testing e_mail";
30 string mailUsername = "mingmingruyuedlut";
31 string mailPassword = ".........."; //发送邮箱的密码（）
32 string mailPort = "25";
33 string attachPath = "E:\\123123.txt; E:\\haha.pdf";
34
35 MyEmail email = new MyEmail(senderServerIp, toMailAddress, fromMailAddress, subjectInfo, bodyInfo, mailUsername, mailPassword, mailPort, false, false);
36 email.AddAttachments(attachPath);
37 email.Send();
38 }
39 catch (Exception ex)
40 {
41 Console.WriteLine(ex.ToString());
42 }
43 }
44 }
45
46 public class MyEmail
47 {
48 private MailMessage mMailMessage; //主要处理发送邮件的内容（如：收发人地址、标题、主体、图片等等）
49 private SmtpClient mSmtpClient; //主要处理用smtp方式发送此邮件的配置信息（如：邮件服务器、发送端口号、验证方式等等）
50 private int mSenderPort; //发送邮件所用的端口号（htmp协议默认为25）
51 private string mSenderServerHost; //发件箱的邮件服务器地址（IP形式或字符串形式均可）
52 private string mSenderPassword; //发件箱的密码
53 private string mSenderUsername; //发件箱的用户名（即@符号前面的字符串，例如：hello@163.com，用户名为：hello）
54 private bool mEnableSsl; //是否对邮件内容进行socket层加密传输
55 private bool mEnablePwdAuthentication; //是否对发件人邮箱进行密码验证
56
57 ///<summary>
58 /// 构造函数
59 ///</summary>
60 ///<param name="server">发件箱的邮件服务器地址</param>
61 ///<param name="toMail">收件人地址（可以是多个收件人，程序中是以“;"进行区分的）</param>
62 ///<param name="fromMail">发件人地址</param>
63 ///<param name="subject">邮件标题</param>
64 ///<param name="emailBody">邮件内容（可以以html格式进行设计）</param>
65 ///<param name="username">发件箱的用户名（即@符号前面的字符串，例如：hello@163.com，用户名为：hello）</param>
66 ///<param name="password">发件人邮箱密码</param>
67 ///<param name="port">发送邮件所用的端口号（htmp协议默认为25）</param>
68 ///<param name="sslEnable">true表示对邮件内容进行socket层加密传输，false表示不加密</param>
69 ///<param name="pwdCheckEnable">true表示对发件人邮箱进行密码验证，false表示不对发件人邮箱进行密码验证</param>
70 public MyEmail(string server, string toMail, string fromMail, string subject, string emailBody, string username, string password, string port, bool sslEnable, bool pwdCheckEnable)
71 {
72 try
73 {
74 mMailMessage = new MailMessage();
75 mMailMessage.To.Add(toMail);
76 mMailMessage.From = new MailAddress(fromMail);
77 mMailMessage.Subject = subject;
78 mMailMessage.Body = emailBody;
79 mMailMessage.IsBodyHtml = true;
80 mMailMessage.BodyEncoding = System.Text.Encoding.UTF8;
81 mMailMessage.Priority = MailPriority.Normal;
82 this.mSenderServerHost = server;
83 this.mSenderUsername = username;
84 this.mSenderPassword = password;
85 this.mSenderPort = Convert.ToInt32(port);
86 this.mEnableSsl = sslEnable;
87 this.mEnablePwdAuthentication = pwdCheckEnable;
88 }
89 catch (Exception ex)
90 {
91 Console.WriteLine(ex.ToString());
92 }
93 }
94
95 ///<summary>
96 /// 添加附件
97 ///</summary>
98 ///<param name="attachmentsPath">附件的路径集合，以分号分隔</param>
99 public void AddAttachments(string attachmentsPath)
100 {
101 try
102 {
103 string[] path = attachmentsPath.Split(';'); //以什么符号分隔可以自定义
104 Attachment data;
105 ContentDisposition disposition;
106 for (int i = 0; i < path.Length; i++)
107 {
108 data = new Attachment(path[i], MediaTypeNames.Application.Octet);
109 disposition = data.ContentDisposition;
110 disposition.CreationDate = File.GetCreationTime(path[i]);
111 disposition.ModificationDate = File.GetLastWriteTime(path[i]);
112 disposition.ReadDate = File.GetLastAccessTime(path[i]);
113 mMailMessage.Attachments.Add(data);
114 }
115 }
116 catch (Exception ex)
117 {
118 Console.WriteLine(ex.ToString());
119 }
120 }
121
122 ///<summary>
123 /// 邮件的发送
124 ///</summary>
125 public void Send()
126 {
127 try
128 {
129 if (mMailMessage != null)
130 {
131 mSmtpClient = new SmtpClient();
132 //mSmtpClient.Host = "smtp." + mMailMessage.From.Host;
133 mSmtpClient.Host = this.mSenderServerHost;
134 mSmtpClient.Port = this.mSenderPort;
135 mSmtpClient.UseDefaultCredentials = false;
136 mSmtpClient.EnableSsl = this.mEnableSsl;
137 if (this.mEnablePwdAuthentication)
138 {
139 System.Net.NetworkCredential nc = new System.Net.NetworkCredential(this.mSenderUsername, this.mSenderPassword);
140 //mSmtpClient.Credentials = new System.Net.NetworkCredential(this.mSenderUsername, this.mSenderPassword);
141 //NTLM: Secure Password Authentication in Microsoft Outlook Express
142 mSmtpClient.Credentials = nc.GetCredential(mSmtpClient.Host, mSmtpClient.Port, "NTLM");
143 }
144 else
145 {
146 mSmtpClient.Credentials = new System.Net.NetworkCredential(this.mSenderUsername, this.mSenderPassword);
147 }
148 mSmtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
149 mSmtpClient.Send(mMailMessage);
150 }
151 }
152 catch (Exception ex)
153 {
154 Console.WriteLine(ex.ToString());
155 }
156 }
157 }
158 }要开启邮箱的SmTP服务。
