mail to QQ mailboxes rejected

mail to QQ mailboxes rejected

sent mail to QQ mailboxes, but constantly being rejected by QQ mail server.

This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. 1443854658@qq.com Invalid Address, ERROR_CODE :550, ERROR_CODE :Ip frequency limited. http://service.mail.qq.com/cgi-bin/help?subtype=1&&id=20022&&no=1000725 Received:from [192.168.0.4] (cpe-74-72-15-136.nyc.res.rr.com [74.72.15.136]) by mx.zohomail.com with SMTPS id 1408934025108364.110052554694; Sun, 24 Aug 2014 19:33:45 -0700 (PDT) Message-ID:<53FAA086.60209@oneusaedu.org> Date:Sun, 24 Aug 2014 22:33:42 -0400 From:Richie Chen <richie@oneusaedu.org> User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 To: Mary <1443854658@qq.com> Subject:Company Info Content-Type:multipart/mixed; boundary="------------040900010001020409050005"

By clicking on QQ mail help, we have the following:

550 Ip frequency limited


The explanation says that QQ server limits the frequency of mail sending from this IP, with undisclosed number of mails per minute / per hour / per day.

And it asks end users to report to mail service provider.

Please help.


Thanks.




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