C#的Email邮件发送系统，简单易用

gistfile1.cs

/*****************************************************************/
 * 功能：发送自定义电子邮件，可以用于在系统发送自定义系统邮件。
/*****************************************************************/

using System;
using System.Net;
using System.Net.Mail;
using System.Net.Mime;
namespace XFish.Utils
{
    /// <summary>  
    /// 电子邮件发送器类
    /// </summary>  
    public class EMailTransmitter
    {
        #region 类内部变量
        private MailMessage _MailMessage;
        private SmtpClient _SmtpClient;
        private string _Password;
        #endregion

        #region 类属性
        /// <summary>
        /// 邮件正文
        /// </summary>
        public string Body
        {
            get { return _MailMessage.Body; }
            set { _MailMessage.Body = value; }
        }
        /// <summary>
        /// 邮件标题
        /// </summary>
        public string Title
        {
            get { return _MailMessage.Subject; }
            set { _MailMessage.Subject = value; }
        }
        /// <summary>
        /// 发送密码
        /// </summary>
        public string Password
        {
            get { return _Password; }
            set { _Password = value; }
        }
        #endregion

        #region 类初始化
        /// <summary>  
        /// 处审核后类的实例  
        /// </summary>  
        /// <param name="To">收件人地址</param>  
        /// <param name="From">发件人地址</param>  
        /// <param name="Body">邮件正文</param>  
        /// <param name="Title">邮件的主题</param>  
        /// <param name="Password">发件人密码</param>  
        public EMailTransmitter(string to, string from, string body, string title, string password)
        {
            _MailMessage = new MailMessage();
            _MailMessage.To.Add(to);
            _MailMessage.From = new System.Net.Mail.MailAddress(from);
            _MailMessage.Subject = title;
            _MailMessage.Body = body;
            _MailMessage.IsBodyHtml = true;
            _MailMessage.BodyEncoding = System.Text.Encoding.UTF8;
            _MailMessage.Priority = System.Net.Mail.MailPriority.Normal;
            _Password = password;
        }
        #endregion

        #region 类方法
        /// <summary>
        /// 增加接收方地址
        /// </summary>
        /// <param name="to">接收方的邮件地址</param>
        public void AddReceiver(string to)
        {
            MailAddress address = new MailAddress(to);
            if (!_MailMessage.To.Contains(address))
                _MailMessage.To.Add(to);
        }
        /// <summary>
        /// 删除指定的接收方地址
        /// </summary>
        /// <param name="to">接收方的邮件地址</param>
        public void RemoveReceiver(string to)
        {
            MailAddress address = new MailAddress(to);
            if (_MailMessage.To.Contains(address))
                _MailMessage.To.Remove(address);
        }
        /// <summary>
        /// 添加附件
        /// </summary>
        /// <param name="Path">附件的路径</param>
        public void AddAttachments(string path)  
        {  
            string[] paths = path.Split(',');  
            Attachment data;  
            ContentDisposition disposition;  
            for (int i = 0; i < paths.Length; i++)  
            {  
                data = new Attachment(paths[i], MediaTypeNames.Application.Octet);//实例化附件  
                disposition = data.ContentDisposition;  
                disposition.CreationDate = System.IO.File.GetCreationTime(paths[i]);//获取 附件的创建日期  
                disposition.ModificationDate = System.IO.File.GetLastWriteTime(paths[i]);//获取附件的修改日期  
                disposition.ReadDate = System.IO.File.GetLastAccessTime(paths[i]);//获取附件的读取日期  
                _MailMessage.Attachments.Add(data);//添加到附件中  
            }  
        }
        /// <summary>
        /// 删除附件
        /// </summary>
        /// <param name="path">附件的路径</param>
        public void RemoveAttachments(string path)
        {
            string[] paths = path.Split(',');
            Attachment data;
            ContentDisposition disposition;  
            for (int i = 0; i < paths.Length; i++)
            {
                data = new Attachment(paths[i], MediaTypeNames.Application.Octet);
                disposition = data.ContentDisposition;  
                disposition.CreationDate = System.IO.File.GetCreationTime(paths[i]);//获取 附件的创建日期  
                disposition.ModificationDate = System.IO.File.GetLastWriteTime(paths[i]);//获取附件的修改日期  
                disposition.ReadDate = System.IO.File.GetLastAccessTime(paths[i]);//获取附件的读取日期  
                if(_MailMessage.Attachments.Contains(data))
                    _MailMessage.Attachments.Remove(data);
            }
        }
        /// <summary>  
        /// 异步发送邮件  
        /// </summary>  
        /// <param name="CompletedMethod">完成后调用的事件</param>  
        public void SendAsync(SendCompletedEventHandler CompletedMethod)
        {
            if (_MailMessage != null)
            {
                _SmtpClient = new SmtpClient();
                _SmtpClient.Credentials = new System.Net.NetworkCredential(_MailMessage.From.Address, _Password);//设置发件人身份的票据  
                _SmtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
                _SmtpClient.Host = "smtp." + _MailMessage.From.Host;
                _SmtpClient.SendCompleted += new SendCompletedEventHandler(CompletedMethod);//注册异步发送邮件完成时的事件  
                _SmtpClient.SendAsync(_MailMessage, _MailMessage.Body);
            }
        }
        /// <summary>  
        /// 发送邮件  
        /// </summary>  
        public void Send()
        {
            if (_MailMessage != null)
            {
                _SmtpClient = new SmtpClient();
                _SmtpClient.Credentials = new System.Net.NetworkCredential(_MailMessage.From.Address, _Password);//设置发件人身份的票据  
                _SmtpClient.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network;
                _SmtpClient.Host = "smtp." + _MailMessage.From.Host;
                _SmtpClient.Send(_MailMessage);
            }
        }
        #endregion
    }
}