1.首先引入命名空间using System.Net.Mail;
2.将发送的邮件的功能封装成一个类，该类中包含了发送邮件的基本功能：收件人(多人)，抄送(多人)，发送人，主题，邮件正文，附件等，封装的Email类如下：
复制代码 代码如下:
public class Email
{
/// <summary>
/// 发送者
/// </summary>
public string mailFrom { get; set; }
/// <summary>
/// 收件人
/// </summary>
public string[] mailToArray { get; set; }
/// <summary>
/// 抄送
/// </summary>
public string[] mailCcArray { get; set; }
/// <summary>
/// 标题
/// </summary>
public string mailSubject { get; set; }
/// <summary>
/// 正文
/// </summary>
public string mailBody { get; set; }
/// <summary>
/// 发件人密码
/// </summary>
public string mailPwd { get; set; }
/// <summary>
/// SMTP邮件服务器
/// </summary>
public string host { get; set; }
/// <summary>
/// 正文是否是html格式
/// </summary>
public bool isbodyHtml { get; set; }
/// <summary>
/// 附件
/// </summary>
public string[] attachmentsPath { get; set; }
public bool Send()
{
//使用指定的邮件地址初始化MailAddress实例
MailAddress maddr = new MailAddress(mailFrom);
//初始化MailMessage实例
MailMessage myMail = new MailMessage();
//向收件人地址集合添加邮件地址
if (mailToArray != null)
{
for (int i = 0; i < mailToArray.Length; i++)
{
myMail.To.Add(mailToArray[i].ToString());
}
}
//向抄送收件人地址集合添加邮件地址
if (mailCcArray != null)
{
for (int i = 0; i < mailCcArray.Length; i++)
{
myMail.CC.Add(mailCcArray[i].ToString());
}
}
//发件人地址
myMail.From = maddr;
//电子邮件的标题
myMail.Subject = mailSubject;
//电子邮件的主题内容使用的编码
myMail.SubjectEncoding = Encoding.UTF8;
//电子邮件正文
myMail.Body = mailBody;
//电子邮件正文的编码
myMail.BodyEncoding = Encoding.Default;
myMail.Priority = MailPriority.High;
myMail.IsBodyHtml = isbodyHtml;
//在有附件的情况下添加附件
try
{
if (attachmentsPath != null && attachmentsPath.Length > 0)
{
Attachment attachFile = null;
foreach (string path in attachmentsPath)
{
attachFile = new Attachment(path);
myMail.Attachments.Add(attachFile);
}
}
}
catch (Exception err)
{
throw new Exception("在添加附件时有错误:" + err);
}
SmtpClient smtp = new SmtpClient();
//指定发件人的邮件地址和密码以验证发件人身份
smtp.Credentials = new System.Net.NetworkCredential(mailFrom, mailPwd);
//设置SMTP邮件服务器
smtp.Host = host;
try
{
//将邮件发送到SMTP邮件服务器
smtp.Send(myMail);
return true;
}
catch (System.Net.Mail.SmtpException ex)
{
return false;
}
}
}
3.页面调用发送邮件的类
复制代码 代码如下:
protected void Send_Click(object sender, EventArgs e)
{
Email email = new Email();
email.mailFrom = "发送人的邮箱地址";
email.mailPwd = "发送人邮箱的密码";
email.mailSubject = "邮件主题";
email.mailBody = "邮件内容";
email.isbodyHtml = true; //是否是HTML
email.host = "smtp.126.com";//如果是QQ邮箱则：smtp:qq.com,依次类推
email.mailToArray = new string[] { "******@qq.com","12345678@qq.com"};//接收者邮件集合
email.mailCcArray = new string[] { "******@qq.com" };//抄送者邮件集合
if (email.Send())
{
Response.Write("<script type='text/javascript'>alert('发送成功！');history.go(-1)</script>");//发送成功则提示返回当前页面；
}
else
{
Response.Write("<script type='text/javascript'>alert('发送失败！');history.go(-1)</script>");
}
}