C#发送邮件

 1  /// <summary>
 2         /// 发送邮件
 3         /// </summary>
 4         /// <param name="MailFromAddress">发件人地址</param>
 5         /// <param name="MailFromUserName">用户名</param>
 6         /// <param name="MailFormPwd">密码</param>
 7         /// <param name="MailTitle">邮件标题</param>
 8         /// <param name="MailBody">邮件内容</param>
 9         /// <param name="MailTo">收件人地址</param>
10         /// <returns>发送成功返回True否则返回False</returns>
11         public static  Boolean SendMail(string MailFromAddress, string MailFormPwd, string MailTitle, string MailBody, string MailTo)
12         {
13             try
14             {
15                 MailMessage objMail = new MailMessage();
16                 //发件人地址
17                 objMail.From = new MailAddress(MailFromAddress);
18                 //邮件标题
19                 objMail.Subject = MailTitle;
20                 //邮件标题编码 
21                 objMail.SubjectEncoding = System.Text.Encoding.UTF8;
22                 //邮件内容
23                 objMail.Body = MailBody;
24                 //邮件内容编码 
25                 objMail.BodyEncoding = System.Text.Encoding.UTF8;
26                 //收件人地址在这里可以加多个
27                 objMail.To.Add(MailTo);
28                 //用SMTP发送邮件的方式
29                 SmtpClient client = new SmtpClient();
30                 //用户名和密码
31                 client.Credentials = new System.Net.NetworkCredential(MailFromAddress, MailFormPwd);
32                 string StrMail = "";
33                 for (int i = 0; i < MailFromAddress.Length; i++)
34                 {
35                     if (MailFromAddress.Substring(i, 1).ToString().Trim() == "@")
36                     {
37                         StrMail = MailFromAddress.Substring(i + 1, MailFromAddress.Length - i - 1);
38                     }
39                 }
40                 //服务器名
41                 client.Host = "smtp." + StrMail.ToString().Trim();
42                 //发送
43                 client.Send(objMail);
44                 return true;
45             }
46             catch (Exception)
47             {
48                 return false;
49             }
50         }
51 

转自：http://www.cnblogs.com/sufei/archive/2009/03/28/1423891.html