这篇文章主要介绍如何使用C#的MailAddress类进行邮件的发送。
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：
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
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>"); } }
以上就完成了在C#中如何发送邮件。