一個C#發郵件模塊，EmailHelper.cs 代碼，是從一個C#工具包中拷貝出來的，在ASP.NET或C#項目中添加發送郵件功能時，這個類挺方便，使用時指定郵件標題、郵件正文、收件人、是否為HTML格式等參數即可，代碼如下：
01using System;
02using System.Collections.Generic;
03using System.Linq;
04using System.Text;
05namespace CLB.Utility.Tools
06{
07 public class EmailHelper
08 {
09 ///<summary>
10 /// 發送郵件
11 ///<summary>
12 ///<param name="subject"> 郵件標題</param>
13 /// <param name="body">郵件正文</param>
14 /// <param name="to">收件人</param>
15 /// <param name="Ishtml">是否為html格式</param>
16 public static bool sendmail(string subject, string body, string to, bool Ishtml)
17 {
18 using (System.Net.Mail.MailMessage msg = new System.Net.Mail.MailMessage())
19 {
20 msg.To.Add(to);
21 msg.From = new System.Net.Mail.MailAddress("郵箱地址", "標題", System.Text.Encoding.UTF8);
22 msg.Subject = subject;//郵件標題
23 msg.SubjectEncoding = System.Text.Encoding.UTF8;//郵件標題編碼
24 msg.Body = body;//郵件內容
25 msg.BodyEncoding = System.Text.Encoding.UTF8;//郵件內容編碼
26 msg.IsBodyHtml = Ishtml;//是否是HTML郵件
27 msg.Priority = System.Net.Mail.MailPriority.High;//郵件優先級
28 System.Net.Mail.SmtpClient client = new System.Net.Mail.SmtpClient();
29 client.Credentials = new System.Net.NetworkCredential("郵箱地址", "密碼");
30 client.Host = "域名";
31 object userState = msg;
32 try
33 {
34 client.Send(msg);
35 return true;
36 }
37 catch
38 {
39 return false;
40 }
41 }
42 }
43 }
44}
