On 24.11.16 10:23, Geoff Soper wrote:
Subject: Spam with attachments and UNPARSEABLE_RELAY

For a few weeks I've been suffering spam messages with attachments getting through with a suspicious score of 0.0. Upon inspection, they all had the following lines in the header:

On 25.11.16 10:18, geoff.sa_users_161...@alphaworks.co.uk wrote:
1. See attached example. I've removed the username and replaced it with <removed>.
2. Other mail is getting correctly identified as spam so that's something...

Return-Path: <gardner.esmera...@microauto.com>
X-Spam-Report:
        *  0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay 
lines

Received: (nullmailer pid 36796 invoked by uid 7637323);
        Fri, 25 Nov 2016 12:23:11 +0500
X-No-Auth: unauthenticated sender
Received: from internal (unknown [x.x.x.x])
Received: (nullmailer pid 36796 invoked by uid 7637323);
        Fri, 25 Nov 2016 12:23:11 +0500
X-PHP-Originating-Script: 7637323:SendMail.class.php

This says that the mail was received from webpage on your server, and the
local mailer "nullmailer" seems have delivered it directly to you.

in fact, you don't know anything about this mail - it was apparently
received via HTTP, but the SendMail.class.php running under uid 7637323 did
not provide even remote IP address.

apparently SA can't parse nullmailer headers - apparently because nullmailer
provides no useful headers.

in this case it's really hard to detect anything, since all information
about mail is lost in PHP.
Maybe PHP could at least provide client's IP (maybe all in x-forwarded-for
path) and that could help us.

--
Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
Warning: I wish NOT to receive e-mail advertising to this address.
Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
Spam is for losers who can't get business any other way.

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