有时我们需要在网站中加入发送邮件的功能，例如一个网上投稿系统，当稿件被采用的时候发送邮件通知作者。下面就以这个功能为例说明如何实现自动发送邮件。
实现发送邮件功能
首先说一下在.Net下如何发送邮件。.Net已经为我们准备好了与发送邮件相关的类，只要直接调用即可，非常方便。下面是我自己写的一个邮件通知类：
/// <summary>
/// 邮件通知服务类。
/// </summary>
public class EmailNotificationService {
/// <summary>
/// 构造一个邮件通知服务类的实例。
/// </summary>
/// <param name="smtpService">SMTP服务器的IP地址</param>
/// <param name="enableSSL">是否使用SSL连接SMTP服务器器</param>
/// <param name="port">SMTP服务器端口</param>
/// <param name="loginName">用于登录SMTP服务器的用户名</param>
/// <param name="password">登录密码</param>
public EmailNotificationService(
string smtpService,
bool enableSSL,
int port,
string loginName,
string password) {
this.m_smtpService = smtpService;
this.m_loginName = loginName;
this.m_password = password;
this.m_enableSSL = enableSSL;
this.m_port = port;
}
private readonly string m_smtpService;
private readonly string m_loginName;
private readonly string m_password;
private readonly bool m_enableSSL;
private readonly int m_port;
/// <summary>
/// 发送邮件通知到指定的EMAIL地址。
/// </summary>
/// <param name="senderName">显示在“发件人”一栏上的名称</param>
/// <param name="address">目的EMAIL地址</param>
/// <param name="title">邮件标题</param>
/// <param name="content">邮件内容</param>
public void SendTo(string senderName, string address, string title, string content) {
MailMessage mail = new MailMessage();
mail.To.Add(address);
mail.From = new MailAddress(this.m_loginName, senderName, Encoding.UTF8);
mail.Subject = title;
mail.Body = content;
mail.BodyEncoding = Encoding.UTF8;
mail.IsBodyHtml = false;
mail.Priority = MailPriority.Normal;
SmtpClient smtp = new SmtpClient();
smtp.Credentials = new NetworkCredential(this.m_loginName, this.m_password);
smtp.Host = this.m_smtpService;
smtp.EnableSsl = this.m_enableSSL;
smtp.Port = this.m_port;
smtp.Send(mail);
}
}