C#编写发送邮件组件

在MailSetting里的配置好邮件服务器，然后MailEntity里配置好要发送的邮件主体，最后使用MailServer里的方法Send发送邮件

MailEntity.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace AutoOutTicket.Mail
{
  public class MailEntity
  {
    public string from;
    public string to;
    public string fromName;
    public string toName;
    public string cc;
    public bool isHtml;
    public string subject;
    public string body;
    public string attach;
  }
}

MailServer.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Mail;
using System.Web;

namespace AutoOutTicket.Mail
{
  public class MailServer
  {
    MailEntity _entity = null;
    MailSetting _settings = null;
    public MailServer(MailEntity entity, MailSetting settings)
    {
      this._entity = entity;
      this._settings = settings;
    }
    public bool Send()
    {
      try
      {
        MailMessage message = new MailMessage(_settings.smtpUser, _entity.to);
        message.IsBodyHtml = _entity.isHtml;
        message.Subject = _entity.subject;
        message.Body = _entity.body;
        if (!string.IsNullOrWhiteSpace(_entity.cc))
        {
          message.CC.Add(_entity.cc);
        }
        if (!string.IsNullOrWhiteSpace(_entity.attach))
        {
          Attachment atta=new Attachment(_entity.attach);
          message.Attachments.Add(atta);
        }

        SmtpClient client = new SmtpClient(_settings.smtpHost, _settings.smtpPort);
        client.Credentials = new NetworkCredential(_settings.smtpUser, _settings.smtpPass);

        client.SendAsync(message, null);

        return true;
      }
      catch (Exception)
      {
      }
      return false;
    }
  }
}

MailSetting.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace AutoOutTicket.Mail
{
  public class MailSetting
  {
    public string smtpHost = "";
    public int smtpPort;
    public string smtpUser = "";
    public string smtpPass = "";
    public MailSetting()
    {
    }
    public MailSetting(string smtpServer, int smtpPort, string smtpUser, string smtpPass)
    {
      this.smtpHost = smtpServer;
      this.smtpPort = smtpPort;
      this.smtpUser = smtpUser;
      this.smtpPass = smtpPass;
    }
  }
}

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