浅谈：ASP.NET中使用System.Net.Mail发邮件
public static void SendMail()//普通的邮件发送{ MailAddress from = new MailAddress("FromEmail@website.com"); MailAddress to = new MailAddress("ToEmail@website.com"); MailMessage message = new MailMessage(from, to); message.Subject = "邮件标题"; message.Body = "邮件内容"; MailAddress copy = new MailAddress("mailto:CopyToEmail@website.com"); message.CC.Add(copy); SmtpClient client = new SmtpClient("SMTP Server"); client.Credentials = CredentialCache.DefaultNetworkCredentials; client.Send(message);}二、带HTML格式的Email发送
public static void SendMail()//带HTML的邮件发送{ MailAddress from = new MailAddress("FromEmail@website.com"); MailAddress to = new MailAddress("ToEmail@website.com"); MailMessage message = new MailMessage(from, to); message.Subject = "邮件标题"; string plainTextBody = "如果你邮件客户端不支持HTML格式，或者你切换到“普通文本”视图，将看到此内容"; message.AlternateViews.Add(AlternateView.CreateAlternateViewFromString(plainTextBody, null, "text/plain")); string htmlBodyContent = "如果你的看到<b>这个</b>，说明你是在以 <span style=\"color:red\">HTML</span> 格式查看邮件<br><br>"; htmlBodyContent += "<a href=\"http://www.baidu.com//">百度一下</a>"; AlternateView htmlBody = AlternateView.CreateAlternateViewFromString(htmlBodyContent, null, "text/html"); message.AlternateViews.Add(htmlBody); MailAddress copy = new MailAddress("mailto:CopyToEmail@website.com "); message.CC.Add(copy); SmtpClient client = new SmtpClient("SMTP Server"); client.Credentials = CredentialCache.DefaultNetworkCredentials; client.Send(message);}三、带附件的邮件
public static void SendMail()//带HTML的邮件发送{ MailAddress from = new MailAddress("FromEmail@website.com"); MailAddress to = new MailAddress("ToEmail@website.com"); MailMessage message = new MailMessage(from, to); message.Subject = "邮件标题"; string plainTextBody = "如果你邮件客户端不支持HTML格式，或者你切换到“普通文本”视图，将看到此内容"; message.AlternateViews.Add(AlternateView.CreateAlternateViewFromString(plainTextBody, null, "text/plain")); string htmlBodyContent = "如果你的看到<b>这个</b>，说明你是在以 <span style=\"color:red\">HTML</span> 格式查看邮件<br><br>"; htmlBodyContent += "<a href=\"http://www.baidu.com//">百度一下</a>"; AlternateView htmlBody = AlternateView.CreateAlternateViewFromString(htmlBodyContent, null, "text/html"); message.AlternateViews.Add(htmlBody); Attachment attachment = new Attachment("C:\\附件.rar"); message.Attachments.Add(attachment); MailAddress copy = new MailAddress("mailto:CopyToEmail@website.com"); message.CC.Add(copy); SmtpClient client = new SmtpClient("SMTP Server"); client.Credentials = CredentialCache.DefaultNetworkCredentials; client.Send(message);}四、邮件为HTML，而且带图片
public static void SendMail()//带HTML，并且HTML中有图片的邮件发送{ MailAddress from = new MailAddress("FromEmail@website.com"); MailAddress to = new MailAddress("ToEmail@website.com"); MailMessage message = new MailMessage(from, to); message.Subject = "邮件标题"; string plainTextBody = "如果你邮件客户端不支持HTML格式，或者你切换到“普通文本”视图，将看到此内容"; message.AlternateViews.Add(AlternateView.CreateAlternateViewFromString(plainTextBody, null, "text/plain")); string htmlBodyContent = "如果你的看到<b>这个</b>，说明你是在以 <span style=\"color:red\">HTML</span> 格式查看邮件<br><br>"; htmlBodyContent += "<a href=\"http://www.baidu.com//">百度一下</a><img src=\"cid:imageInEmail\"/>"; AlternateView htmlBody = AlternateView.CreateAlternateViewFromString(htmlBodyContent, null, "text/html"); LinkedResource lrImage = new LinkedResource("C:\\图片.jpg", System.Net.Mime.MediaTypeNames.Image.Jpeg); lrImage.ContentId = "imageInEmail"; //此处的ContentId 对应 htmlBodyContent 内容中的 cid: ,如果设置不正确,请不会显示图片 htmlBody.LinkedResources.Add(lrImage); message.AlternateViews.Add(htmlBody); MailAddress copy = new MailAddress("mailto:CopyToEmail@website.com"); message.CC.Add(copy); SmtpClient client = new SmtpClient("SMTP Server"); client.Credentials = CredentialCache.DefaultNetworkCredentials; client.Send(message);}五、图片为动态生成
public static void SendMail()//带HTML，并且HTML中有图片的邮件发送{ MailAddress from = new MailAddress("FromEmail@website.com"); MailAddress to = new MailAddress("ToEmail@website.com"); MailMessage message = new MailMessage(from, to); message.Subject = "邮件标题"; string plainTextBody = "如果你邮件客户端不支持HTML格式，或者你切换到“普通文本”视图，将看到此内容"; message.AlternateViews.Add(AlternateView.CreateAlternateViewFromString(plainTextBody, null, "text/plain")); string htmlBodyContent = "如果你的看到<b>这个</b>，说明你是在以 <span style=\"color:red\">HTML</span> 格式查看邮件<br><br>"; htmlBodyContent += "<a href=\"http://www.baidu.com//">百度一下</a><img src=\"cid:imageInEmail\"/>"; AlternateView htmlBody = AlternateView.CreateAlternateViewFromString(htmlBodyContent, null, "text/html"); MemoryStream imgStream = GetImage(); imgStream.Position = 0;//非常重要，否则图片为空！在邮件里显示红叉 LinkedResource lrImage = new LinkedResource(imgStream, System.Net.Mime.MediaTypeNames.Image.Jpeg); lrImage.ContentId = "imageInEmail"; //此处的ContentId 对应 htmlBodyContent 内容中的 cid: ，如果设置不正确，请不会显示图片 htmlBody.LinkedResources.Add(lrImage); message.AlternateViews.Add(htmlBody); MailAddress copy = new MailAddress("mailto:CopyToEmail@website.com"); message.CC.Add(copy); SmtpClient client = new SmtpClient("SMTP Server"); client.Credentials = CredentialCache.DefaultNetworkCredentials; client.Send(message);}public static MemoryStream GetImage(){ //Code here... ...}using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Net.Mail;using System.Text;using System.IO;using System.Net;using System.Net.Mime;namespace BI.MailService.Mail{ public class BIMailService { SmtpClient SmtpClient = null; //设置SMTP协议 MailAddress MailAddress_from = null; //设置发信人地址 当然还需要密码 MailAddress MailAddress_to = null; //设置收信人地址 不需要密码 MailMessage MailMessage_Mai = null; FileStream FileStream_my = null; //附件文件流 #region 设置Smtp服务器信息 /// <summary> /// 设置Smtp服务器信息 /// </summary> /// <param name="ServerName">SMTP服务名</param> /// <param name="Port">端口号</param> private void setSmtpClient(string ServerHost, int Port) { SmtpClient = new SmtpClient(); SmtpClient.Host = ServerHost;//指定SMTP服务名 例如QQ邮箱为 smtp.qq.com 新浪cn邮箱为 smtp.sina.cn等 SmtpClient.Port = Port; //指定端口号 SmtpClient.Timeout = 0; //超时时间 } #endregion #region 验证发件人信息 /// <summary> /// 验证发件人信息 /// </summary> /// <param name="MailAddress">发件邮箱地址</param> /// <param name="MailPwd">邮箱密码</param> private void setAddressform(string MailAddress, string MailPwd) { //创建服务器认证 NetworkCredential NetworkCredential_my = new NetworkCredential(MailAddress, MailPwd); //实例化发件人地址 MailAddress_from = new System.Net.Mail.MailAddress(MailAddress, "报表系统"); MailMessage_Mai.From = MailAddress_from; //指定发件人信息 包括邮箱地址和邮箱密码 SmtpClient.Credentials = new System.Net.NetworkCredential(MailAddress_from.Address, MailPwd); } #endregion #region 检测附件大小 private bool Attachment_MaiInit(string path) { try { FileStream_my = new FileStream(path, FileMode.Open); string name = FileStream_my.Name; int size = (int)(FileStream_my.Length / 1024 / 1024); FileStream_my.Close(); //控制文件大小不大于10Ｍ if (size > 10) { return false; } return true; } catch (IOException e) { return false; } } #endregion #region 添加收件人 /// <summary> /// 添加收件人列表 /// </summary> /// <param name="list">收件人名单</param> private void AddAddressee(string[] list) { foreach (string address in list) { if (address != list[0])//第一个收件人已经添加 { MailAddress_to = new MailAddress(address); MailMessage_Mai.To.Add(MailAddress_to); } //MailMessage_Mai.CC.Add(new MailAddress("test@beisen.com"));//将收件人加入域中 //MailMessage_Mai.Bcc.Add(new MailAddress("1234567@qq.com")); } } #endregion public string SendMessage(string server, string accessoriesPath, string[] toMailAddressList, string subject, string body) { try { MailMessage_Mai = new MailMessage("test@gmail.com", toMailAddressList[0]); MailMessage_Mai.Subject = subject; MailMessage_Mai.SubjectEncoding = Encoding.UTF8;//进行字符格式转换，否则可能收到的邮件出现乱码 MailMessage_Mai.Body = body; MailMessage_Mai.BodyEncoding = Encoding.UTF8; MailMessage_Mai.IsBodyHtml = true; MailMessage_Mai.Priority = MailPriority.High;//指定邮件优先级 SmtpClient = new SmtpClient(server); string plainTextBody = "如果你邮件客户端不支持HTML格式，或者你切换到“普通文本”视图，将看到此内容"; MailMessage_Mai.AlternateViews.Add(AlternateView.CreateAlternateViewFromString(plainTextBody, null, "text/plain")); string htmlBodyContent = "如果你的看到<b>这个</b>，说明你是在以 <span style=\"color:red\">HTML</span> 格式查看邮件<br><br>"; htmlBodyContent += "<a href=\"http://www.baidu.com//\">百度一下</a><img src=\"cid:imageInEmail\"/>"; AlternateView htmlBody = AlternateView.CreateAlternateViewFromString(htmlBodyContent, null, "text/html"); MemoryStream imgStream = GetImage(); imgStream.Position = 0;//非常重要，否则图片为空！在邮件里显示红叉 LinkedResource lrImage = new LinkedResource(imgStream, System.Net.Mime.MediaTypeNames.Image.Jpeg); lrImage.ContentId = "imageInEmail"; //此处的ContentId 对应 htmlBodyContent 内容中的 cid: ，如果设置不正确，请不会显示图片 htmlBody.LinkedResources.Add(lrImage); MailMessage_Mai.AlternateViews.Add(htmlBody); setSmtpClient("smtp.gmail.com", 587);//587这是gmail的端口号，一般中国的邮箱发不了邮件就是因为端口号封闭了，不能提供第三方开发者调用。 setAddressform("test@gmail.com", "mima"); if (toMailAddressList.Length > 1) { AddAddressee(toMailAddressList); } SmtpClient.DeliveryMethod = SmtpDeliveryMethod.Network; SmtpClient.EnableSsl = true; if (accessoriesPath.Trim() != "") { MailMessage_Mai.Attachments.Clear();//添加附件 MailMessage_Mai.HeadersEncoding = Encoding.UTF8; MailMessage_Mai.Attachments.Add(new Attachment(accessoriesPath, MediaTypeNames.Application.Octet)); } SmtpClient.Send(MailMessage_Mai); return "发送成功！"; } catch (Exception ey) { throw ey; } } public static MemoryStream GetImage() { //Code here... ... return null; } }}