c# 发送邮箱时 System.Net.Mail.SmtpException: 事务失败

System.Net.Mail.SmtpException: 事务失败。 服务器响应为:DT:SPM 163 smtp4,DtGowAC3XnN9Ir1XVgKyAA--.54206S2 1472012926,please see http://mail.163.com/help/help_spam_16.htm?ip=202.134.83.241&hostid=smtp4&time=1472012926    在 System.Net.Mail.DataStopCommand.CheckResponse(SmtpStatusCode statusCode, String serverResponse)
   在 System.Net.Mail.DataStopCommand.Send(SmtpConnection conn)
   在 System.Net.Mail.SmtpConnection.OnClose(Object sender, EventArgs args)
   在 System.Net.ClosableStream.Close()
   在 System.Net.Mail.MailWriter.Close()
   在 System.Net.Mail.SmtpClient.Send(MailMessage message)
   在 BLL.EmailBLL.SendEmail(String[] toEmails, String[] ccEmails, String strSubject, String[] filePaths, String& strMsg) 位置 D:\ken\ken\BLL\EmailBLL.cs:行号 121

原因:被记录到此ip发送频繁了(换个Ip就可以用了)
解决:方法,当发送了多少次后就换个邮箱.
 
参考:http://bbs.csdn.net/topics/350005958