邮件发送类文件，可直接使用；
调用方法（实例化、静态调用）：
实例化：
string exception = "";
SendEmail.SendEmail SE = new SendEmail.SendEmail("aaa@163.com", "aaa", "smtp.163.com", "管理员");
SE.SendMails("aaa<aaa@qq.com>;aaa<aaa@hotmail.com>;", "你好", "您好！", new string[] { }, out exception);
静态使用
SendEmail.SendEmail.Sends("aaa@163.com", "aaa", "aaa", TextBox1.Text, TextBox2.Text, TextBox3.Text, "smtp.163.com", true, FilePaths, out exception);
using System; using System.Collections.Generic; using System.Text; using System.Net.Mail; using System.Net; using System.Xml; using System.Text.RegularExpressions; namespace SendEmail { public class SendEmail { /// <summary> /// 发送者邮箱地址 /// </summary> private static string fromMailAddress; /// <summary> /// 发送者邮箱密码 /// </summary> private static string fromMailPwd; /// <summary> /// 发送者邮箱SMTP /// </summary> private static string fromMailSMTP; /// <summary> /// 发送者邮箱显示名称 /// </summary> private static string fromDisplayName; /// <summary> /// 构造基础参数 /// </summary> /// <param name="frommailaddress">发送方邮箱地址</param> /// <param name="frommailpwd">发送方邮箱密码</param> /// <param name="frommailsmtp">发送方smtp地址</param> /// <param name="fromdisplayname">发送者邮箱显示名称</param> public SendEmail(string frommailaddress, string frommailpwd, string frommailsmtp, string fromdisplayname) { fromMailAddress = frommailaddress; fromMailPwd = frommailpwd; fromMailSMTP = frommailsmtp; fromDisplayName = fromdisplayname; } public SendEmail() { XmlDocument doc = new XmlDocument(); doc.Load(System.Web.HttpContext.Current.Server.MapPath("~/SystemConfig.xml")); XmlNode ServerMail = doc.SelectSingleNode("/Condition/System/ServerMail"); XmlNode PwdMail = doc.SelectSingleNode("/Condition/System/PwdMail"); XmlNode SMTP = doc.SelectSingleNode("/Condition/System/SMTP"); XmlNode DisplayName = doc.SelectSingleNode("/Condition/System/DisplayName"); if (ServerMail != null && ServerMail.InnerText != "" && PwdMail != null && PwdMail.InnerText != "" && SMTP != null && SMTP.InnerText != "" && DisplayName != null && DisplayName.InnerText != "") { fromMailAddress = ServerMail.InnerText; fromMailPwd = Encoding.Default.GetString(Convert.FromBase64String(doc.SelectSingleNode("/Condition/System/PwdMail").InnerText)); fromMailSMTP = SMTP.InnerText; fromDisplayName = DisplayName.InnerText; } } /// <summary> /// 实例化后邮件发送 /// </summary> /// <param name="ToEmails">接收邮件地址,lzy ＜lo_yung@163.com＞;</param> /// <param name="eSubject">邮件标题</param> /// <param name="eBody">邮件内容</param> /// <param name="FileNames">邮件附件,无附件为null</param> /// <param name="exception">未发送成功异常消息</param> /// <returns>是否发送成功</returns> public bool SendMails(string ToEmails, string eSubject, string eBody, string[] FileNames, out string exception) { bool Result = false; //实例化发送内容对象 MailMessage oMail = new MailMessage();//创建一个MailMessage对象 try { MailAddress from = new MailAddress(fromMailAddress, fromDisplayName);//设置发送者信息 oMail.From = from;//设置发信人地址 oMail.Subject = eSubject;//邮件标题 oMail.Body = eBody; //邮件内容 oMail.IsBodyHtml = true; //指定邮件格式,支持HTML格式 oMail.BodyEncoding = System.Text.Encoding.GetEncoding("GB2312");//邮件采用的编码,字符集，缺省为"US-ASCII" oMail.Priority = MailPriority.High;//设置邮件的优先级为高 oMail.DeliveryNotificationOptions = DeliveryNotificationOptions.OnSuccess;//发送结果通知 if (FileNames.Length > 0) { foreach (string filepath in FileNames) oMail.Attachments.Add(new Attachment(filepath));//邮件添加附件 } //实例化发送载体 SmtpClient client = new SmtpClient(); //实例化发送邮件SMTP服务器 client.Host = fromMailSMTP; //指定邮件服务器 client.UseDefaultCredentials = false;//凭据是否随请求一起发送,必须放在client.Credentials前 client.Credentials = new NetworkCredential(fromMailAddress, fromMailPwd);//指定服务器邮件,及密码 client.DeliveryMethod = SmtpDeliveryMethod.Network;//将邮件内容发送到SMTP服务器发出 //接收邮件格式化 if (ToEmails.Trim().IndexOf(";") != -1 && ToEmails.Trim().IndexOf("<") != -1 && ToEmails.Trim().IndexOf(">") != -1) { string[] mailNames = ToEmails.Trim().Split(new string[] { ";" }, StringSplitOptions.RemoveEmptyEntries); foreach (string name in mailNames) { if (!string.IsNullOrEmpty(name)) { string displayName = ""; string address = ""; //邮件格式loyung <lo_yung@163.com>; if (name.IndexOf('<') > 0) { displayName = name.Substring(0, name.IndexOf('<')); address = name.Substring(name.IndexOf('<') + 1).Replace('>', ' '); } oMail.To.Add(new MailAddress(address, displayName)); } } } else { Regex reg = new Regex("^\\s*([A-Za-z0-9_-]+(\\.\\w+)*@(\\w+\\.)+\\w{2,5})\\s*$"); if (reg.IsMatch(ToEmails.Trim())) { oMail.To.Add(new MailAddress(ToEmails.Trim(), ToEmails.Trim().Substring(0, ToEmails.Trim().IndexOf("@")))); } else { exception = "邮箱格式不正确"; Result = false; } } client.Send(oMail); //发送邮件 exception = "发送成功！"; Result = true; } catch (Exception ex) { exception = ex.Message; Result = false; } finally { oMail.Dispose(); //释放资源 } return Result; } /// <summary> /// 静态方法，发送邮件 /// </summary> /// <param name="FromEmailAddress">发送方邮箱地址</param> /// <param name="FromDisplayName">发送方邮箱显示名称</param> /// <param name="FromPWD">发送方邮箱密码</param> /// <param name="ToEmails">接收邮件地址,lzy ＜lo_yung@163.com＞;</param> /// <param name="eSubject">邮件标题</param> /// <param name="eBody">邮件内容</param> /// <param name="SMTP">发送方smtp地址</param> /// <param name="IsBodyHtml">邮件内容是否以html呈现</param> /// <param name="FileNames">邮件附件,无附件为null</param> /// <param name="exception">未发送成功异常消息</param> /// <returns>是否发送成功</returns> public static bool Sends(string FromEmailAddress, string FromDisplayName, string FromPWD, string ToEmails, string eSubject, string eBody, string SMTP, bool IsBodyHtml, string[] FileNames, out string exception) { bool Result = false; //实例化发送内容对象 MailMessage oMail = new MailMessage();//创建一个MailMessage对象 try { MailAddress from = new MailAddress(FromEmailAddress, FromDisplayName);//设置发送者信息 oMail.From = from;//设置发信人地址 oMail.Subject = eSubject;//邮件标题 oMail.Body = eBody; //邮件内容 oMail.IsBodyHtml = true; //指定邮件格式,支持HTML格式 oMail.BodyEncoding = System.Text.Encoding.GetEncoding("GB2312");//邮件采用的编码,字符集，缺省为"US-ASCII" oMail.Priority = MailPriority.High;//设置邮件的优先级为高 oMail.DeliveryNotificationOptions = DeliveryNotificationOptions.OnSuccess;//发送结果通知 if (FileNames.Length > 0) { foreach (string filepath in FileNames) oMail.Attachments.Add(new Attachment(filepath));//邮件添加附件 } //实例化发送载体 SmtpClient client = new SmtpClient(); //实例化发送邮件SMTP服务器 client.Host = SMTP; //指定邮件服务器 client.UseDefaultCredentials = false;//凭据是否随请求一起发送,必须放在client.Credentials前 client.Credentials = new NetworkCredential(FromEmailAddress, FromPWD);//指定服务器邮件,及密码 client.DeliveryMethod = SmtpDeliveryMethod.Network;//将邮件内容发送到SMTP服务器发出 //接收邮件格式化 if (ToEmails.Trim().IndexOf(";") != -1 && ToEmails.Trim().IndexOf("<") != -1 && ToEmails.Trim().IndexOf(">") != -1) { string[] mailNames = ToEmails.Trim().Split(new string[] { ";" }, StringSplitOptions.RemoveEmptyEntries); foreach (string name in mailNames) { if (!string.IsNullOrEmpty(name)) { string displayName = ""; string address = ""; //邮件格式loyung <lo_yung@163.com>; if (name.IndexOf('<') > 0) { displayName = name.Substring(0, name.IndexOf('<')); address = name.Substring(name.IndexOf('<') + 1).Replace('>', ' '); } oMail.To.Add(new MailAddress(address, displayName)); } } } else { Regex reg = new Regex("^\\s*([A-Za-z0-9_-]+(\\.\\w+)*@(\\w+\\.)+\\w{2,5})\\s*$"); if (reg.IsMatch(ToEmails.Trim())) { oMail.To.Add(new MailAddress(ToEmails.Trim(), ToEmails.Trim().Substring(0, ToEmails.Trim().IndexOf("@")))); } else { exception = "邮箱格式不正确"; Result = false; } } client.Send(oMail); //发送邮件 exception = "发送成功！"; Result = true; } catch (Exception ex) { exception = ex.Message; Result = false; } finally { oMail.Dispose(); //释放资源 } return Result; } } }
