asp.net 客户邮件群发功能 SendMail 发送静态化html

背景：现在几乎每个企业都要用到邮箱，而在大客户量情况下，为我们的不同等级的客户送上节日关怀，以及把我们的喜讯、新品通知到他们是我们急需解决的问题。效果如图

思路：

1、静态化网页模版，首先考虑需要发送什么，把需要的东西做成小而精美的html静态化页面以待发送时候用到；

2、关于发送问题，点击“发送邮件”弹出群发邮件的框，填写主题、html的服务器所在地址、收件人（多个）；

3、群发的实现。

代码C#：

/// <summary>/// 发送失败的邮箱地址搜集参数/// </summary>PRivate string errorMail;

群发邮件点击事件

protected void BtnSendMail_Click(object sender, EventArgs e) { if (string.IsNullOrEmpty(txTopic.Value)) { MessageShow("邮件主题必填"); return; } if (string.IsNullOrEmpty(txUrl.Value)) { MessageShow("URL内容必填"); return; } if (string.IsNullOrEmpty(txTo.Value)) { MessageShow("收件人必填"); return; } string email = ConfigurationManager.AppSettings["ManagerSendMailUserName"].ToString(); //登录用户邮箱 string emailpwd = ConfigurationManager.AppSettings["ManagerSendMailUserPwd"].ToString(); //登录用户邮箱密码 string s = GetHtmlCode(txUrl.Value, "gb2312"); bool restr = Sendmail(email, txTo.Value, txTopic.Value, true, s, "smtp.exmail.QQ.com", email, emailpwd); if (restr) { ClientScript.RegisterStartupScript(this.GetType(), "", "<script>alert('全部发送成功！');</script>"); } else { ClientScript.RegisterStartupScript(this.GetType(), "", "<script>alert('已发送，但以下地址发送失败：" + errorMail + "可能是地址不存在！');</script>"); } }

/// <summary> /// 发送邮件 /// </summary> /// <param name="from">发送人邮件地址</param> /// <param name="to">接收人邮件地址</param> /// <param name="subject">邮件主题</param> /// <param name="isBodyHtml">是否是Html</param> /// <param name="body">邮件体</param> /// <param name="smtpHost">SMTP服务器地址,例如:smtp.163.com</param> /// <param name="userName">用户名</param> /// <param name="passWord">密码</param> /// <returns>是否成功</returns> public bool Sendmail(string from, string to, string subject, bool isBodyHtml, string body, string smtpHost, string userName, string password) { bool isSuccess = true; string[] ts = null; if (!string.IsNullOrEmpty(to)) { if (to.Contains(";")) ts = to.Split(';'); else ts = new string[] { to }; foreach (string t in ts) { if (!string.IsNullOrEmpty(t)) { MailMessage mm = new MailMessage(); mm.From = new MailAddress(from); mm.To.Add(new MailAddress(t)); mm.Subject = subject; mm.IsBodyHtml = isBodyHtml; mm.Body = body; SmtpClient sc = new SmtpClient(); sc.Host = smtpHost; sc.Port = 25; sc.EnableSsl = false; sc.Credentials = new NetworkCredential(userName, password); sc.UseDefaultCredentials = true; sc.Credentials = new System.Net.NetworkCredential(userName, password); sc.DeliveryMethod = SmtpDeliveryMethod.Network; try { sc.Send(mm); } catch (Exception x) { errorMail += t + ";"; isSuccess = false; continue; } } } } return isSuccess; }

/// <summary> /// 获取指定路径下的模板的HTML源代码 /// </summary> /// <param name="TemplatePath">模板的路径</param> /// <param name="EncodingType">网页类型（有些是UTF8，有些是GB2312）</param> /// <returns>源代码</returns> private string GetHtmlCode(string TemplatePath, string EncodingType) { try { if (TemplatePath != string.Empty) { string ForesideUriPath = string.Empty; if (!TemplatePath.ToLower().StartsWith("http://")) ForesideUriPath = HttpContext.Current.Server.MapPath("~/") + TemplatePath; else ForesideUriPath = TemplatePath; WebClient webClient = new WebClient(); //设置网络凭证为系统凭证 webClient.Credentials = CredentialCache.DefaultCredentials; //获取指定URI的网页的源代码 byte[] byteDataBuffer = webClient.DownloadData(ForesideUriPath); string htmlCode = ""; if (EncodingType == "UTF8") { htmlCode = Encoding.UTF8.GetString(byteDataBuffer); } else { htmlCode = Encoding.GetEncoding(EncodingType).GetString(byteDataBuffer); } htmlCode = Regex.Replace(htmlCode, @"<!DOCTYPE/s*HTML/s*PUBLIC[^>]+>", "", RegexOptions.Singleline); htmlCode = Regex.Replace(htmlCode, @"/s+", " ", RegexOptions.Singleline); return htmlCode; } else { return ""; } } catch (Exception ee) { throw (ee); } }

总结：这个功能还是非常有用的，大家可以扩展，定时发送什么，实现各种烂漫的功能。最后说一声，祝大家羊年大吉，心想事成！