Cs@gl-inet.com Rejecting Mail

I tried to send email to cs@gl-inet.com to resolve an issue and it was rejected.

The mail system

<cs@gl-inet.com>: host mxbiz1.qq.com[] said: 550 Mail content
    (in reply to end of DATA command)

Google Translate leads off with

Reason for error : The content of this email is suspected of being sent in large numbers, and has been complained by most users as spam.

Content consisted of text describing the issue, logs demonstrating the issue, a JPEG image of the label of the device, and a PDF of the Amazon (US) invoice.

How can I resolve this?

Can you send to my personal email? I will pm you.