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The below message appears to be from China. I have the filter loaded so shouldn't it be catching these?


Your message did not reach some or all of the intended recipients.
Subject: c1x-- 2011版STT企业培训师培训全面提升(TTT实战加强版) --5tn
Sent: 6/28/2011 8:28 AM
The following recipient(s) cannot be reached:
on 6/28/2011 8:31 AM
The destination server for this recipient could not be found in Domain Name Service (DNS). Please verify the email address and retry. If that fails, contact your administrator.

by Bill Jerome 8 years ago

@Bill Jerome: This seems to be a backscatter NDR, so probably it was not originated from China (the original spam which was sent to the server generating the bounce was).

In other words, spammer from China spoofed your address and sent a spam to somebody, who rejected the email and sent an NDR to your address. For more information (and about the solutions), please read our article at

by Krisztian Fekete (Vamsoft) 8 years ago
(in reply to this post)

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