这是我发的50封邮件后显示的结果

2008-3-3 上午 10:22:10 27402480 ** S:Connect - 80621981@qq.com - smtp.sina.com - 421: smtp.sina.com.cn Error: too many connections from 60.214.253.83 
2008-3-3 上午 10:22:10 27403008 ** S:Connect - 814203897@qq.com - smtp.sina.com - 421: smtp.sina.com.cn Error: too many connections from 60.214.253.83 
2008-3-3 上午 10:22:11 27402480 ** S:Connect - 83091296@qq.com - smtp.sina.com - 421: smtp.sina.com.cn Error: too many connections from 60.214.253.83 
2008-3-3 上午 10:22:11 27403008 ** S:Connect - 837378237@qq.com - smtp.sina.com - 421: smtp.sina.com.cn Error: too many connections from 60.214.253.83 
2008-3-3 上午 10:22:12 27404592 ** S:Connect - 397757512@qq.com - smtp.sina.com - 421: smtp.sina.com.cn Error: too many connections from 60.214.253.83 
2008-3-3 上午 10:22:12 27402480 ** S:Connect - 83822491@qq.com - smtp.sina.com - 421: smtp.sina.com.cn Error: too many connections from 60.214.253.83 
2008-3-3 上午 10:22:12 27403008 ** S:Connect - 839866160@qq.com - smtp.sina.com - 421: smtp.sina.com.cn Error: too many connections from 60.214.253.83 
2008-3-3 上午 10:22:13 27404592 ** S:Connect - 842845724@qq.com - smtp.sina.com - 421: smtp.sina.com.cn Error: too many connections from 60.214.253.83 
2008-3-3 上午 10:22:13 27402480 ** S:Connect - 84534198@qq.com - smtp.sina.com - 421: smtp.sina.com.cn Error: too many connections from 60.214.253.83 
2008-3-3 上午 10:22:25 27403536 ** S:Success - 821545803@qq.com  smtp addr: huahuaak@sina.com
2008-3-3 上午 10:22:25 27404064 ** S:Success - 827286040@qq.com  smtp addr: huahuaak@sina.com
最后就成共几个请问是哪一个环节出了问题