Connection blocked by rate limit 这个怎么解决？

dc天涯

另外一个单位的邮件一直收不到，以下是对方用户收到的系统信息，帮忙看看是哪的问题？

smtp;452 Connection blocked by rate limit

对方服务器作了限制？

1. 
   
2. 您的邮件一直排在队列中，试投 4 后仍无法传递给下列收件人：
   
3. 
   
4.   Recipient address: xx@ciefr.pku.edu.cn
   
5.   Reason: unable to deliver this message after 4 days
   
6. 
   
7. 
   
8. Delivery attempt history for your mail:
   
9. 
   
10. Tue, 13 Jan 2009 14:34:44 +0800 (CST)
    
11. Temporary error returned by SMTP partner.
    
12. smtp;452 Connection blocked by rate limit
    
13. 
    
14. Tue, 13 Jan 2009 04:29:26 +0800 (CST)
    
15. ; initial status response expected
    
16. 
    
17. Mon, 12 Jan 2009 12:26:17 +0800 (CST)
    
18. Too many failures to this host during this run; skipping this host: Try again later
    
19. 
    
20. Sun, 11 Jan 2009 20:20:38 +0800 (CST)
    
21. ; initial status response expected
    
22. 
    
23. Sun, 11 Jan 2009 04:17:29 +0800 (CST)
    
24. Temporary error returned by SMTP partner.
    
25. smtp;452 Connection blocked by rate limit
    
26. 
    
27. Sat, 10 Jan 2009 20:17:29 +0800 (CST)
    
28. Temporary error returned by SMTP partner.
    
29. smtp;452 Connection blocked by rate limit
    
30. 
    
31. Sat, 10 Jan 2009 12:17:29 +0800 (CST)
    
32. ; initial status response expected
    
33. 
    
34. Sat, 10 Jan 2009 04:14:20 +0800 (CST)
    
35. ; initial status response expected
    
36. 
    
37. Sat, 10 Jan 2009 00:11:11 +0800 (CST)
    
38. ; initial status response expected
    
39. 
    
40. Fri,  9 Jan 2009 20:08:02 +0800 (CST)
    
41. Temporary error returned by SMTP partner.
    
42. smtp;452 Connection blocked by rate limit
    
43. 
    
44. Fri,  9 Jan 2009 18:08:02 +0800 (CST)
    
45. Temporary error returned by SMTP partner.
    
46. smtp;452 Connection blocked by rate limit
    
47. 
    
48. 邮件系统将继续试投您的邮件，再试投 3。
    

复制代码

dc天涯

delivered 和 relayed 有什么区别？

jhonlone

带宽达到限额？