spamhaus check not working

Chris Aseltine
Mon Jun 12 12:23:11 UTC 2017

Lately some obvious spam has been getting past the Spamhaus check in DCC.  The headers look like this:


DATE: 06/12/17 06:19:59 CDT
IP: ::ffff:

Received: from [] ([]) by with MailEnable ESMTP; Mon, 12 Jun 2017 13:19:48 +0200

X-DCC--Metrics: quantum 1102; Body=1 Fuz1=1 Fuz2=1
       greylist recipient f35a0557 2b5f56ad 2d2fe2ca a1e7d100
                           ba3482a7 c0d02932 255da318 947b54c6 Embargo #1

rejection message: 452 4.2.1 mail v5CBJxNw056714 from temporary greylist embargoed


What exactly do those headers mean? is heavily listed in the Spamhaus CBL, but is not.

I don't think is the real IP address of the host delivering the message, and that is?

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