C#发送邮件
邮件帮组类
using System; using System.Collections.Generic; using System.IO; using System.Net; using System.Net.Mail; using System.Net.Mime; using System.Text; using System.Threading; using System.Threading.Tasks; namespace LionTech.Utility.MELMRP { public class MailSender { private String _EmailSMTPServer = String.Empty; //SMTP位置 private int _EmailSMTPPort = 25; //SMTP Port private mailAddr _sender = new mailAddr("", ""); private String _Subject = String.Empty;//信件標題 private String _Content = String.Empty;//信件內容 private List<mailAddr> _ReplayTo = new List<mailAddr>();//信件回覆位置 private List<mailAddr> _Receiver = new List<mailAddr>();//信件接收者 private List<mailAddr> _CC = new List<mailAddr>();//副本 private List<mailAddr> _BCC = new List<mailAddr>();//密件副本 private Boolean _EnableSSL = false;//是否啟用SSL private Boolean _EnableTHML = true;//是否為HTML內容 private Boolean _Notification = false;//信件回函 private List<AttachmentFile> _AttachmentFiles = new List<AttachmentFile>();//附件 private Encoding _SubjectEncoding = Encoding.UTF8;//標題編碼 private Encoding _ContentEncoding = Encoding.UTF8;//內容編碼 private MailPriority _Priority = MailPriority.Normal;//優先順序 /// <summary> 設定、取得信件寄件者 </summary> public mailAddr sender { get { return _sender; } set { _sender = value; } } /// <summary> 設定、取得信件標題 </summary> public String Subject { get { return _Subject; } set { //_Subject = value; _Subject = String.Format("=?UTF-8?B?{0}?=", Convert.ToBase64String(Encoding.UTF8.GetBytes(value))); } } /// <summary> 設定、取得信件內容 </summary> public String Content { get { return _Content; } set { _Content = value; } } /// <summary> 設定、取得信件回覆位置 </summary> public List<mailAddr> ReplayTo { get { return _ReplayTo; } set { _ReplayTo = value; } } /// <summary> 設定、取得信件接收者 </summary> public List<mailAddr> Receiver { get { return _Receiver; } set { _Receiver = value; } } /// <summary> 設定、取得信件副本 </summary> public List<mailAddr> CC { get { return _CC; } set { _CC = value; } } /// <summary> 設定、取得信件密件副本 </summary> public List<mailAddr> BCC { get { return _BCC; } set { _BCC = value; } } /// <summary> 設定、取得是否啟用SSL(def:false) </summary> public bool EnableSSL { get { return _EnableSSL; } set { _EnableSSL = value; } } /// <summary> 設定、取得是否為HTML內容(def:true) </summary> public bool EnableTHML { get { return _EnableTHML; } set { _EnableTHML = value; } } /// <summary> 設定、取得是否需要信件回函(def:false) </summary> public bool Notification { get { return _Notification; } set { _Notification = value; } } /// <summary> 設定、取得信件附件 </summary> public List<AttachmentFile> AttachmentFiles { get { return _AttachmentFiles; } set { _AttachmentFiles = value; } } /// <summary> 設定、取得信件標題編碼 </summary> public Encoding Encoding_Subject { get { return _SubjectEncoding; } set { _SubjectEncoding = value; } } /// <summary> 設定、取得信件內容編碼 </summary> public Encoding Encoding_Content { get { return _ContentEncoding; } set { _ContentEncoding = value; } } /// <summary> 設定、取得信件優先順序 </summary> public MailPriority Priority { get { return _Priority; } set { _Priority = value; } } /// <summary> 設定、取得發送郵件的 thread *非同步發信新增 </summary> public Thread SendThread { get; set; } /// <summary> 建構子 </summary> /// <param name="SMTPServer">SMTP位置</param> /// <param name="SMTPPort">SMTP Port (通常為 25)</param> public MailSender(String SMTPServer, int SMTPPort) { _EmailSMTPServer = SMTPServer; _EmailSMTPPort = SMTPPort; } /// <summary> 建構子 (default port:25) </summary> /// <param name="SMTPServer"></param> public MailSender(String SMTPServer) : this(SMTPServer, 25) { } public MailSender() { } #region 非同步發信新增的程式區段 ---------------------------------------------- /// <summary> 非同步發信函數。</summary> public void BeginSend() { SendThread = new Thread(new ThreadStart(BeginSendSubThread)); SendThread.Name = "MailSendThread"; SendThread.Start(); } private void BeginSendSubThread() { try { Send(); } catch { } SendThread.Abort(); //結束非同步發信的執行緒 } #endregion -------------------------------------------------------------------- /// <summary>信件發送函數。</summary> public bool Send() { MailMessage mail = new MailMessage(); mail.From = new MailAddress(sender.mail, sender.name);//寄件者 mail.IsBodyHtml = EnableTHML; //信件本文是否為HTML mail.Body = Content; //設定本文內容 mail.BodyEncoding = _ContentEncoding; mail.Subject = Subject; //設定信件標題 mail.SubjectEncoding = _ContentEncoding; //mail.Priority = MailPriority.High; if (Receiver.Count > 0)//收件者 Parallel.ForEach(Receiver, (item, loopState) => { if (IsValidEmail(item.mail)) mail.To.Add(new MailAddress(item.mail, item.name)); }); if (ReplayTo.Count > 0)//設定信件回覆位置 Parallel.ForEach(ReplayTo, (item, loopState) => { if (IsValidEmail(item.mail)) mail.ReplyToList.Add(new MailAddress(item.mail, item.name)); }); if (CC.Count > 0)//加入信件副本 Parallel.ForEach(CC, (item, loopState) => { if (IsValidEmail(item.mail)) mail.CC.Add(new MailAddress(item.mail, item.name)); }); if (BCC.Count > 0)//加入信件密件副本 Parallel.ForEach(BCC, (item, loopState) => { if (IsValidEmail(item.mail)) mail.Bcc.Add(new MailAddress(item.mail, item.name)); }); if (Notification && IsValidEmail(sender.mail))//回條 mail.Headers.Add("Disposition-Notification-To", sender.mail); if (AttachmentFiles.Count > 0) { Parallel.ForEach(AttachmentFiles, (item, loopState) => { if (item != null && item.FileStream != null && item.FileStream.Length > 0 && !String.IsNullOrWhiteSpace(item.FileName)) mail.Attachments.Add(new Attachment(item.FileStream, item.FileName)); }); } mail.Priority = _Priority;//優先順序 try { //如果是空的，取 webconfig 中設定值 if (string.IsNullOrWhiteSpace(_EmailSMTPServer)) { using (SmtpClient SC = new SmtpClient()) { SC.Send(mail); } } else { SmtpClient SC = new SmtpClient(_EmailSMTPServer, _EmailSMTPPort); SC.EnableSsl = EnableSSL; //是否開啟SSL SC.Host = _EmailSMTPServer; SC.Port = _EmailSMTPPort; SC.UseDefaultCredentials = true; //设置邮箱发送服务 SC.Credentials = new NetworkCredential("3781100649@163.com", "13055673352zzz"); SC.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network; SC.Send(mail); //發送 return true; } } catch (Exception ex) { return false; } return false; } public static bool IsValidEmail(string strIn) { if (!String.IsNullOrWhiteSpace(strIn)) { // Return true if strIn is in valid e-mail format. return System.Text.RegularExpressions.Regex.IsMatch(strIn, @"^(?("")("".+?""@)|(([0-9a-zA-Z]((\.(?!\.))|[-!#\$%&'\*\+/=\?\^`\{\}\|~\w])*)(?<=[0-9a-zA-Z])@))" + @"(?(\[)(\[(\d{1,3}\.){3}\d{1,3}\])|(([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,6}))$"); } else return false; } } public class mailAddr { private String _name = String.Empty; private String _mail = String.Empty; private String _encodeName = string.Empty; public String name { get { return _name; } } public String mail { get { return _mail; } } public String encodeName { get { return _encodeName; } } public mailAddr(String name, String email) { _name = name; _mail = email; _encodeName = !string.IsNullOrWhiteSpace(name) ? String.Format("=?UTF-8?Q?{0}?=", Uri.EscapeDataString(name).Replace("%", "=")) : ""; } } public class AttachmentFile { private Stream _fStream; private String _fName = String.Empty; public Stream FileStream { get { return _fStream; } } public String FileName { get { return _fName; } } public AttachmentFile(Stream FileStream, String FileName) { _fStream = FileStream; _fName = FileName; } } }
发送邮件
//获取文件流 FileStream fileStream = new FileStream(strFilePath, FileMode.Open, FileAccess.Read, FileShare.Read); //获取文件名 string FileName = "Web.config"; byte[] bytes = new byte[fileStream.Length]; fileStream.Read(bytes, 0, bytes.Length); Stream stream = new MemoryStream(bytes); stream.Flush(); fileStream.Close(); //设置邮件信息 MailSender sendEmail = new MailSender("smtp.163.com", 25) { //发件人 sender = new mailAddr("发送人名称", "邮箱地址"), //收件人 Receiver = new List<mailAddr>() { new mailAddr("张伟东", Buffer_Addresseeemail) }, //主旨 Subject = Query_title, //内容 Content = Query_content, //发送附件 AttachmentFiles = new List<AttachmentFile>() { new AttachmentFile(stream, FileName) } }; //发送邮件 if (sendEmail.Send()) { //发送邮件成功！ stream.Close(); return true; } else { //发送邮件失败！ stream.Close(); return false; }
进一步操作，封装邮件发送方法，可通过网络发送和发送到本地硬盘中
#region 發送Email到本地 /// <summary> /// 發送Email到本地 /// </summary> /// <param name="senderEmail">發送者Email地址</param> /// <param name="toEmail">接收者Email地址</param> /// <param name="subject">標題</param> /// <param name="content">內容</param> /// <param name="locationPath">本地存放絕對路徑</param> public void sendEmailToLocation(string senderEmail, List<mailAddr> toEmail, string subject, string content, string locationPath) { MailMessage email = new MailMessage(); email.From = new MailAddress(senderEmail); foreach (mailAddr addr in toEmail) { if (string.IsNullOrWhiteSpace(addr.mail)) continue; email.To.Add(new MailAddress(addr.mail)); } email.IsBodyHtml = true; email.Body = content; email.Subject = subject; SmtpClient stmp = new SmtpClient(Account.EmailSmtp, Account.EmailSmtpPort); stmp.UseDefaultCredentials = true; stmp.DeliveryMethod = SmtpDeliveryMethod.SpecifiedPickupDirectory;
//发送的路径 stmp.PickupDirectoryLocation = locationPath; stmp.Send(email); } #endregion #region 發送網絡郵件 /// <summary> /// 發送網絡郵件 /// </summary> /// <param name="senderName">發送者發送郵件名稱</param> /// <param name="senderEmail">發送者郵箱地址</param> /// <param name="toEmail">接受者</param> /// <param name="subject">主題</param> /// <param name="content">內容</param> public void sendEmailToNetWork(string senderName, string senderEmail, List<mailAddr> toEmail, string subject, string content) { //邮件发送类 MailSender sendEmail = new MailSender(Account.EmailSmtp, Account.EmailSmtpPort); //发送者 sendEmail.sender = new mailAddr(senderName, Account.mailSenderMail); //接收者 foreach (mailAddr addr in toEmail) { if (string.IsNullOrWhiteSpace(addr.mail)) continue; sendEmail.Receiver.Add(new mailAddr(addr.name, addr.mail)); } //主题 sendEmail.Subject = subject; //内容 sendEmail.Content = content; sendEmail.EnableTHML = true; //发送邮件 sendEmail.BeginSend(); } #endregion
详细解释
public static void sendmail_2() { SmtpClient smtp = new SmtpClient(); //实例化一个SmtpClient smtp.DeliveryMethod = SmtpDeliveryMethod.Network; //将smtp的出站方式设为 Network smtp.EnableSsl = false;//smtp服务器是否启用SSL加密 smtp.Host = "smtp.163.com"; //指定 smtp 服务器地址 smtp.Port = 25; //指定 smtp 服务器的端口，默认是25，如果采用默认端口，可省去 //如果你的SMTP服务器不需要身份认证，则使用下面的方式，不过，目前基本没有不需要认证的了 smtp.UseDefaultCredentials = true; //如果需要认证，则用下面的方式 smtp.Credentials = new NetworkCredential("a@163.com", "****"); MailMessage mm = new MailMessage(); //实例化一个邮件类 mm.Priority = MailPriority.High; //邮件的优先级，分为 Low, Normal, High，通常用 Normal即可 mm.From = new MailAddress("b@163.com", "真有意思测试", Encoding.GetEncoding(936)); //收件方看到的邮件来源； //第一个参数是发信人邮件地址 //第二参数是发信人显示的名称 //第三个参数是 第二个参数所使用的编码，如果指定不正确，则对方收到后显示乱码 //936是简体中文的codepage值 //注：上面的邮件来源，一定要和你登录邮箱的帐号一致，否则会认证失败 mm.ReplyTo = new MailAddress("b@163.com", "我的接收邮箱", Encoding.GetEncoding(936)); //ReplyTo 表示对方回复邮件时默认的接收地址，即：你用一个邮箱发信，但却用另一个来收信 //上面后两个参数的意义， 同 From 的意义 //mm.CC.Add("a@163.com,b@163.com,c@163.com"); //邮件的抄送者，支持群发，多个邮件地址之间用 半角逗号 分开 //当然也可以用全地址，如下： mm.CC.Add(new MailAddress("c@163.com", "抄送者A", Encoding.GetEncoding(936))); //mm.CC.Add(new MailAddress("b@163.com", "抄送者B", Encoding.GetEncoding(936))); //mm.CC.Add(new MailAddress("c@163.com", "抄送者C", Encoding.GetEncoding(936))); //mm.Bcc.Add("d@163.com,e@163.com"); //邮件的密送者，支持群发，多个邮件地址之间用 半角逗号 分开 //当然也可以用全地址，如下： //mm.CC.Add(new MailAddress("d@163.com", "密送者D", Encoding.GetEncoding(936))); //mm.CC.Add(new MailAddress("e@163.com", "密送者E", Encoding.GetEncoding(936))); //mm.Sender = new MailAddress("xxx@xxx.com", "邮件发送者", Encoding.GetEncoding(936)); //可以任意设置，此信息包含在邮件头中，但并不会验证有效性，也不会显示给收件人 //说实话，我不知道有啥实际作用，大家可不理会，也可不写此项 //mm.To.Add("g@163.com,h@163.com"); //邮件的接收者，支持群发，多个地址之间用 半角逗号 分开 //当然也可以用全地址添加 mm.To.Add(new MailAddress("g@163.com", "接收者g", Encoding.GetEncoding(936))); //mm.To.Add(new MailAddress("h@163.com", "接收者h", Encoding.GetEncoding(936))); mm.Subject = "这是邮件标题-测试"; //邮件标题 mm.SubjectEncoding = Encoding.GetEncoding(936); // 这里非常重要，如果你的邮件标题包含中文，这里一定要指定，否则对方收到的极有可能是乱码。 // 936是简体中文的pagecode，如果是英文标题，这句可以忽略不用 mm.IsBodyHtml = true; //邮件正文是否是HTML格式 mm.BodyEncoding = Encoding.GetEncoding(936); //邮件正文的编码， 设置不正确， 接收者会收到乱码 mm.Body = "<font color=\"red\">邮件测试，呵呵</font>"; //邮件正文 mm.Attachments.Add(new Attachment(@"c:\d\1.doc", System.Net.Mime.MediaTypeNames.Application.Rtf)); //添加附件，第二个参数，表示附件的文件类型，可以不用指定 //可以添加多个附件 //mm.Attachments.Add(new Attachment(@"d:b.doc")); smtp.Send(mm); //发送邮件，如果不返回异常， 则大功告成了。 }
