System.Web.Mail 邮件正文显示图片

 

String FromAddress = "[e-mail]";
                       //(1)创建MailMessage实例          
            MailMessage mm = new MailMessage(FromAddress, emailadd);
            mm.BodyEncoding = System.Text.Encoding.GetEncoding("gb2312");
            mm.SubjectEncoding = System.Text.Encoding.GetEncoding("gb2312");
            //(2)属性MailMessage赋值
            mm.Subject = "title";

            string strFilePath = @"E:\001.gif";

            System.Net.Mail.Attachment attachment1 = new System.Net.Mail.Attachment(strFilePath);//添加附件
              attachment1.Name = System.IO.Path.GetFileName(strFilePath);
            attachment1.NameEncoding = System.Text.Encoding.GetEncoding("gb2312");
            attachment1.TransferEncoding = System.Net.Mime.TransferEncoding.Base64;           
            attachment1.ContentDisposition.Inline = true;
            attachment1.ContentDisposition.DispositionType = System.Net.Mime.DispositionTypeNames.Inline;
            string cid = attachment1.ContentId;//关键性的地方，这里得到一个id数值
            mm.Attachments.Add(attachment1);
           
            mm.Body = “Test <img src=cid:”+cid+" />"; //这里就是插入图片的方法
            mm.IsBodyHtml = true;
            //(3)创建SmtpClient对象
            SmtpClient smtp = new SmtpClient();
            smtp.Host = "mail.xxx.com";//邮件服务器
            smtp.UseDefaultCredentials = false;
            smtp.Credentials = new System.Net.NetworkCredential("username", "pwd");//用户名和密码
            try
            {
                smtp.Send(mm);//发送
                return true;
            }
            catch(SmtpException se)
            {
               return false;
            }