Undelivered Mail Returned to Sender

[Mail Delivery System]

This is the mail system at host 96402jszsoft.net.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<117280858 at qq.com>: delivery temporarily suspended: host
    mx1.qq.com[58.251.110.111] refused to talk to me: 550 Connection frequency
    limited.
    http://service.mail.qq.com/cgi-bin/help?subtype=1&&id=20022&&no=1000722
    [MPhspsyFj4R8kxbaLl2f4E69ijKB/8lelrVRHORF/ddtdWywhKrJfcY4vRQmvAHfyQ== IP:
    104.168.209.59]
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