有时候需要系统发一些带图片的邮件给用户,一般的做法是将邮件中的图版放到公网上,然后在HTML邮件中指定绝对地址.但这样做有一些bug,就是outlook2003等其他一些客户端会禁止你看这些图片.
现在最好的做法是将图版放在邮件中,发送一个带图的HTML邮件给客户.
下面是 .NET 发邮件中的关键代码.
1 2 3 4 5 6 7 | string fileName = System.IO.Directory.GetCurrentDirectory().ToString() + "\\PA.JPG"; LinkedResource lrImage = new LinkedResource(fileName, "image/jpeg"); icontent = icontent.Replace("[attid]", lrImage.ContentId); AlternateView htmlBody = AlternateView.CreateAlternateViewFromString(icontent, null, "text/html"); htmlBody.LinkedResources.Add(lrImage); em.AlternateViews.Add(htmlBody); |
完整程序:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | using System; using System.Collections.Generic; using System.Text; using System.Net; using System.Net.Mail; namespace cutEmpAccount { class EmailSimple { private static string _content = @"<p>系统维护人员：<br /> <img src='cid:[attid]' /> 取消帐号出错，请跟进。</p>"; public static void sentEmail(string empId, string name, string deptCode, string deptName) { SmtpClient smtp = new SmtpClient(); smtp.DeliveryMethod = SmtpDeliveryMethod.Network; smtp.EnableSsl = false; smtp.Host = "smtp.extjs.org.cn"; smtp.Port = 25; smtp.UseDefaultCredentials = true; smtp.Credentials = new NetworkCredential("fatjames", "fatjames"); MailMessage em = new MailMessage(); em.Subject = "停帐号出错通知"; em.SubjectEncoding = Encoding.GetEncoding(936); em.From = new MailAddress("fatjames@extjs.org.cn", "停帐号系统",Encoding.GetEncoding(936)); em.To.Add(System.Configuration.ConfigurationSettings.AppSettings["ErrEmail"]); em.IsBodyHtml = true; em.BodyEncoding = Encoding.GetEncoding(936); string fileName = System.IO.Directory.GetCurrentDirectory().ToString() + "\\PA.JPG"; LinkedResource lrImage = new LinkedResource(fileName, "image/jpeg"); icontent = icontent.Replace("[attid]", lrImage.ContentId); AlternateView htmlBody = AlternateView.CreateAlternateViewFromString(icontent, null, "text/html"); htmlBody.LinkedResources.Add(lrImage); em.AlternateViews.Add(htmlBody); smtp.Send(em); } } } |