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C#實(shí)現(xiàn)SMTP郵件發(fā)送程序?qū)嵗?/h1>
 更新時(shí)間：2014年10月10日 11:21:36   投稿：shichen2014  
這篇文章主要介紹了C#實(shí)現(xiàn)SMTP郵件發(fā)送程序?qū)嵗?是一個(gè)非常常見(jiàn)的實(shí)用技巧,需要的朋友可以參考下

通常來(lái)說(shuō)郵件發(fā)送功能在網(wǎng)站應(yīng)用程序中經(jīng)常會(huì)用到，包括大家經(jīng)?？吹降牟┛?，在添加評(píng)論后，系統(tǒng)會(huì)自動(dòng)發(fā)送郵件通知到我郵箱的，把系統(tǒng)發(fā)送郵件的功能整理了下，本文展示了一個(gè)客戶端Demo，希望對(duì)有需要的朋友有所幫助。運(yùn)行效果如下圖所示：

核心代碼如下：

復(fù)制代碼 代碼如下:
using System;
using System.Net;
using System.Net.Mail;
using System.Text;
namespace HC.Email
{
    /// <summary>
    ///     整站郵件服務(wù)類(lèi)
    /// </summary>
    public class EmailService
    {
        /// <summary>
        ///     發(fā)送郵件
        /// </summary>
        /// <param name="mailTo">收件人
        /// <param name="subject">主題
        /// <param name="body">內(nèi)容
        /// <returns></returns>
        public static bool Send(string mailTo, string subject, string body)
        {
            return Send(new[] {mailTo}, null, subject, body, true, null);
        }
        /// <summary>
        ///     發(fā)送郵件
        /// </summary>
        /// <param name="mailTo">收件人
        /// <param name="subject">主題
        /// <param name="body">內(nèi)容
        /// <returns></returns>
        public static bool Send(string[] mailTo, string subject, string body)
        {
            return Send(mailTo, null, subject, body, true, null);
        }
 
        /// <summary>
        ///     發(fā)送郵件
        /// </summary>
        /// <param name="mailTo">收件人
        /// <param name="subject">主題
        /// <param name="body">內(nèi)容
        /// <param name="attachmentsPath">附件
        /// <returns></returns>
        public static bool Send(string[] mailTo, string subject, string body, string[] attachmentsPath)
        {
            return Send(mailTo, null, subject, body, true, attachmentsPath);
        }
 
        /// <summary>
        ///     發(fā)送郵件
        /// </summary>
        /// <param name="mailTo">收件人
        /// <param name="mailCcArray">抄送
        /// <param name="subject">主題
        /// <param name="body">內(nèi)容
        /// <param name="isBodyHtml">是否Html
        /// <param name="attachmentsPath">附件
        /// <returns></returns>
        public static bool Send(string[] mailTo, string[] mailCcArray, string subject,string body, bool isBodyHtml,
                                string[] attachmentsPath)
        {
            try
            {
                var config = ConfigHelper.GetConfig<emailconfig>();
                if (string.IsNullOrEmpty(config.Host) ||string.IsNullOrEmpty(config.UserName) ||
                    string.IsNullOrEmpty(config.Port) ||string.IsNullOrEmpty(config.Password))
                {
                    //todo:記錄日志
                    return false;
                }
                var @from = new MailAddress(config.MailFrom); //使用指定的郵件地址初始化MailAddress實(shí)例
                var message = new MailMessage(); //初始化MailMessage實(shí)例
                //向收件人地址集合添加郵件地址
                if (mailTo != null)
                {
                    foreach (string t in mailTo)
                    {
                        message.To.Add(t);
                    }
                }
 
                //向抄送收件人地址集合添加郵件地址
                if (mailCcArray != null)
                {
                    foreach (string t in mailCcArray)
                    {
                        message.CC.Add(t);
                    }
                }
                //發(fā)件人地址
                message.From = @from;
 
                //電子郵件的標(biāo)題
                message.Subject = subject;
 
                //電子郵件的主題內(nèi)容使用的編碼
                message.SubjectEncoding = Encoding.UTF8;
 
                //電子郵件正文
                message.Body = body;
 
                //電子郵件正文的編碼
                message.BodyEncoding = Encoding.Default;
                message.Priority = MailPriority.High;
                message.IsBodyHtml = isBodyHtml;
 
                //在有附件的情況下添加附件
                if (attachmentsPath != null && attachmentsPath.Length > 0)
                {
                    foreach (string path in attachmentsPath)
                    {
                        var attachFile = new Attachment(path);
                        message.Attachments.Add(attachFile);
                    }
                }
                try
                {
                    var smtp = new SmtpClient
                        {
                            Credentials = new NetworkCredential(config.UserName, config.Password),
                            Host = config.Host,
                            Port = Convert.ToInt32(config.Port)
                        };
 
                    //將郵件發(fā)送到SMTP郵件服務(wù)器
                    smtp.Send(message);
                    //todo:記錄日志
                    return true;
                }
                catch (SmtpException ex)
                {
                    //todo:記錄日志
                    return false;
                }
            }
            catch (SmtpException ex)
            {
                //todo:記錄日志
                return false;
            }
        }
    }
}

完整實(shí)例代碼點(diǎn)擊此處本站下載。

希望本文所述對(duì)大家的C#程序設(shè)計(jì)有所幫助

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