C#邮件发送工具类

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目录结构：

Commom

Mail.cs

MailError.cs

Model.cs

Mail.cs //填写相应的邮箱的服务器地址、发件人姓名、邮箱、密码信息

using System;using System.Collections.Generic;using System.Text;using System.Net.Mail;using System.Net;using ThingsService.Commom;using System.Threading;using System.Linq;namespace Common.EMail{    class Mail    {        /// <summary>        /// 判断是否正确的邮箱格式        /// </summary>        /// <param name="str_Email">邮箱地址</param>        /// <returns>bool</returns>        public static bool IsEmail(string str_Email)        {            return System.Text.RegularExpressions.Regex.IsMatch(str_Email, @"^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");        }        /// <summary>        /// 发送邮件,可发送多个邮箱地址。返回string[发送完成 或 错误信息]        /// </summary>        /// <param name="model">邮件实体</param>        /// <returns>返回string[发送完成 或 错误信息]</returns>        public static bool SendEmail(Model model, out string info)        {            ///Dictionary<string, MailType> toEmail, string subject, string body, bool bodyHTML, int priority, string reportFile            if (model.ToEmail != null && model.ToEmail.Count > 0)            {                if (model.Format == ContentFormat.HTML)                {                    return SendEmail(model.ToEmail, model.Subject, model.Body, true, (int)model.Priority, model.AttachmentPhysicalPath, out info);                }                else                {                    return SendEmail(model.ToEmail, model.Subject, model.Body, false, (int)model.Priority, model.AttachmentPhysicalPath, out info);                }            }            else            {                info = "邮箱地址不能为空。";                return false;            }        }        #region --定时发送邮件        delegate void del_timingSendEmail(Model model, TimeSpan timeout);        /// <summary>        /// 定时发送邮件        /// </summary>        /// <param name="model">邮件实体</param>        /// <param name="sendDateTime">预计发送时间</param>        /// <returns></returns>        public static bool TimingSendEmail(Model model, DateTime sendDateTime, out string Result)        {            if (model.ToEmail.Count > 0)            {                if (sendDateTime != null && DateTime.Now < sendDateTime)                {                    Model EModel = (Model)model.Clone();                    var del = new del_timingSendEmail(TimingSendEmailHandel);                    var timeout = sendDateTime - DateTime.Now;                    del.BeginInvoke(EModel, timeout, null, null);                    Result = string.Format("系统将在{0}天{1}小时{2}分{3}秒后发送该邮件！", timeout.Days, timeout.Hours, timeout.Minutes, timeout.Seconds);                    return true;                }                else                {                    return SendEmail(model, out Result);                }            }            else            {                Result = "邮箱地址至少得有一个";                return false;            }        }        static void TimingSendEmailHandel(Model model, TimeSpan timeout)        {            Thread.Sleep(timeout);            string Result;            SendEmail(model, out Result);            Console.WriteLine("{0} {1}发送结果:{2}", DateTime.Now.ToString("yyyy-MM-dd hh:mm:sss"), model.ToEmail.Keys.First<string>(), Result);        }        #endregion        /// <summary>        /// 发送邮件,同时发送多个邮箱。返回string[发送完成 或 错误信息] 注：如果发送失败，会再自动发送，如果连续发送失败3次将会终止发送        /// </summary>        /// <param name="mailTo">收信人地址ArrayList数组</param>        /// <param name="subject">邮件标题</param>        /// <param name="body">邮件内容</param>        /// <param name="bodyHTML">内容格式:false为Text,true为Html</param>        /// <param name="priority">优先级:0为低,1为中,2为高</param>        /// <returns>string</returns>        private static bool SendEmail(Dictionary<string, MailType> toEmail, string subject, string body, bool bodyHTML, int priority, List<string> reportFile, out string info)        {            info = string.Empty;            if (string.IsNullOrEmpty(subject))            {                info = "邮件标题不能为空!";                return false;            }            string errEmail = "";            string smtp = "";         //发信人所用邮箱的服务器            string mailPwd = "";      //发件人的密码            string mailTrueName = ""; //发件人的姓名            string mailForm = "";     //发件人的邮箱            System.Net.Mail.MailMessage msg = new System.Net.Mail.MailMessage();            foreach (KeyValuePair<string, MailType> item in toEmail)            {                if (!IsEmail(item.Key))                {                    errEmail += item.Key + "<br />";                }                else                {                    if (item.Value == MailType.send)                    {                        msg.To.Add(item.Key);                    }                    else if (item.Value == MailType.copy)                    {                        if (toEmail.Count > 1)                        {                            msg.CC.Add(item.Key);                        }                        else                        {                            info = "参数toEmail里至少得有一个邮箱地址为MailType.send!";                            return false;                        }                    }                }            }            msg.From = new MailAddress(mailForm, mailTrueName, System.Text.Encoding.UTF8);            /* 上面3个参数分别是发件人地址（可以随便写），发件人姓名，编码*/            msg.Subject = subject;            msg.SubjectEncoding = System.Text.Encoding.UTF8;            msg.Body = body;            msg.BodyEncoding = System.Text.Encoding.UTF8;            msg.IsBodyHtml = bodyHTML;  //是否是HTML邮件            //邮件优先级            if (priority == 0)                msg.Priority = MailPriority.Low;            else if (priority == 1)                msg.Priority = MailPriority.Normal;            else                msg.Priority = MailPriority.High;            ///附件为空            Attachment datAttachment;            foreach (string item in reportFile)            {                datAttachment = new Attachment(item, System.Net.Mime.MediaTypeNames.Application.Octet);                System.Net.Mime.ContentDisposition disposition = datAttachment.ContentDisposition;                disposition.CreationDate = System.IO.File.GetCreationTime(item);                disposition.ModificationDate = System.IO.File.GetLastWriteTime(item);                disposition.ReadDate = System.IO.File.GetLastAccessTime(item);                msg.Attachments.Add(datAttachment);            }            //创建Smtp Mail对象            SmtpClient smtpClient = new SmtpClient();            smtpClient.UseDefaultCredentials = false;   //要在下一行之前,否则无法登录服务器            smtpClient.Credentials = new NetworkCredential(mailForm, mailPwd);            smtpClient.Port = 25;            smtpClient.Host = smtp;            smtpClient.EnableSsl = false;            smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network; //指定如何处理待发的邮件            int number = 3;        agin:            try            {                smtpClient.Send(msg);                info = "发送完成！";                if (errEmail != "")                    info += "<hr /><strong>以下邮箱地址格式有问题：</strong><br />" + errEmail;                return true;            }            catch (SmtpException ex)            {                if (number > 0)                {                    number--;                    Console.WriteLine("：重新发送【{0}】次", number);                    goto agin;                }                else                {                    info = ex.ToString() + ex.StackTrace;                    return false;                }            }        }    }}

MailError.cs

using System;using System.Collections.Generic;using System.Text;namespace ThingsService.Common.EMail{    /// <summary>    /// 发送邮件异常    /// </summary>    public class MailError : Exception    {        private string message;        public MailError(string message)        {            this.message = message;        }        public override string Message        {            get            {                return this.message;            }        }        public override string ToString()        {            return this.message;        }    }}

Model.cs

using System;using System.Collections.Generic;using System.Text;using Commom;using System.Collections;using System.Runtime.Serialization.Formatters.Binary;using System.IO;namespace Common.EMail{    /// <summary>    /// 邮箱实体    /// </summary>    [Serializable]    public class Model : ICloneable    {        private Dictionary<string, MailType> toEmail = new Dictionary<string, MailType>();        private string subject;        private string body;        private ContentFormat format = ContentFormat.TEXT;        private Priority priority = Priority.Normal;        private List<string> attachmentPhysicalPath = new List<string>();        /// <summary>        /// 收件人的邮箱地址集合        /// </summary>        public Dictionary<string, MailType> ToEmail        {            get { return toEmail; }            set { toEmail = value; }        }        /// <summary>        /// 邮件主题        /// </summary>        public string Subject        {            get { return subject; }            set { subject = value; }        }        /// <summary>        /// 邮件内容        /// </summary>        public string Body        {            get {                if (string.IsNullOrEmpty(body))                    body = "";//设置默认值                return body;            }            set { body = value; }        }        /// <summary>        /// 内容格式 默认为Text        /// </summary>        public ContentFormat Format        {            get { return format; }            set { format = value; }        }        /// <summary>        /// 邮件发送级别 默认为中        /// </summary>        public Priority Priority        {            get { return priority; }            set { priority = value; }        }        /// <summary>        /// 附件的物理路径        /// </summary>        public List<string> AttachmentPhysicalPath        {            get { return attachmentPhysicalPath; }        }        /// <summary>        /// 初始化        /// </summary>        public void ReSet()        {            toEmail.Clear();            subject = string.Empty;            body = string.Empty;            format = ContentFormat.TEXT;            priority = Priority.Normal;            attachmentPhysicalPath.Clear();        }        /// <summary>        /// 字符串转换成邮箱 重复的邮箱会自动去掉 第一个为发送（MailType.send） 其它为抄送（MailType.copy）        /// </summary>        /// <param name="str"></param>        /// <param name="info"></param>        /// <param name="splitSymbol">分割符号</param>        /// <returns></returns>        public static bool stringToEmail(string str, out Dictionary<string, MailType> toEmail, out string info, char splitSymbol = '|', StrToEmailType Type = StrToEmailType.第一个为发送_其他为抄送)        {            toEmail = new Dictionary<string, MailType>();            info = string.Empty;            bool result;            string[] EArry = str.Split('|');            if (EArry.Length > 0)            {                MailType tmp;                for (sbyte i = 0; i < EArry.Length; i++)                {                    if (!EMail.Mail.IsEmail(EArry[i])) { continue; }                    if (toEmail.TryGetValue(EArry[i], out tmp)) { continue; }                    if (i == 0)                    {                        if (Type == StrToEmailType.第一个为发送_其他为抄送)                        {                            toEmail.Add(EArry[i], MailType.send);                        }                        else                         {                            toEmail.Add(EArry[i], MailType.copy);                        }                    }                    else                    {                        toEmail.Add(EArry[i], MailType.copy);                    }                }                if (toEmail.Count > 0)                {                    result = true;                }                else                 {                    info = "邮箱格式错误！";                    result = false;                }            }            else             {                info = "邮箱为空！";                result = false;            }            return result;        }        /// <summary>        /// 移除所有的类型为发送的邮箱        /// </summary>        /// <param name="toEmail"></param>        public static void RemoveSend(Dictionary<string, MailType> toEmail)         {            if (toEmail == null) return;            ArrayList temp = new ArrayList();            foreach (KeyValuePair<string, MailType> Item in toEmail)             {                if (Item.Value == MailType.send)                 {                    if (Item.Key == null) continue;                    temp.Add(Item.Key);                }            }            foreach (string item in temp)             {                toEmail.Remove(item);            }        }        /// <summary>        /// 深复制邮箱        /// </summary>        /// <param name="Emailes"></param>        /// <param name="IsCopy">全部为抄送、根据实际MailType</param>        public void ToEmailJoin(Dictionary<string, MailType> Emailes, bool IsCopy = true)         {            foreach (KeyValuePair<string, MailType> Item in Emailes)            {                if (this.ToEmail.ContainsKey(Item.Key)) continue;                if (IsCopy)                    this.ToEmail.Add(Item.Key, MailType.copy);                else                    this.ToEmail.Add(Item.Key, Item.Value);            }        }        public object Clone()        {            BinaryFormatter bf = new BinaryFormatter();            MemoryStream ms = new MemoryStream();            bf.Serialize(ms, this);            ms.Seek(0, SeekOrigin.Begin);            return bf.Deserialize(ms);        }    }}

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