Discussion:
blocking readnotify
(too old to reply)
Voytek
2005-08-15 23:02:58 UTC
Permalink
I've just came across a (new ?) mail tracking service readnotify.com
I've tried searching archives, but didn't find any reference to it.

their users append '.readnotify.com' to all send mail to get all kind of
mail tracking reports.

in my header-checks, I already use these:

....
/^Disposition-Notification-To:/ IGNORE
/^Read-Receipt-To:/ IGNORE
/^Registered-Mail-Reply-Requested-By:/ IGNORE
/^Return-Receipt-Requested:/ IGNORE
/^Return-Receipt-To:/ IGNORE
/^X-Confirm-Reading-To:/ IGNORE
....

what else should I add to block readnotify.com's tracking as much as
possible without causing too many probs for my users ?

header from an inbound email sent via .readnotify follows:

----------------------
Return-Path: <***@gmail.com.yedrldepzydmpkk.emsvr.com>
X-Original-To: ***@sbt.net.au
Delivered-To: ***@sbt.net.au
Received: from localhost (koala.sbt.net.au [127.0.0.1])
by koala.sbt.net.au (Postfix) with ESMTP id E39842386A9
for <***@sbt.net.au>; Tue, 16 Aug 2005 08:24:55 +1000 (EST)
Received: from koala.sbt.net.au ([127.0.0.1])
by localhost (koala.sbt.net.au [127.0.0.1]) (amavisd-new, port 10024)
with LMTP id 17092-02-3 for <***@sbt.net.au>;
Tue, 16 Aug 2005 08:24:32 +1000 (EST)
Received: from emsvr.com (smtp.emsvr.com [208.185.243.104])
by koala.sbt.net.au (Postfix) with ESMTP id 5141B238612
for <***@sbt.net.au>; Tue, 16 Aug 2005 08:24:30 +1000 (EST)
Received: from emsvr.com (localhost [127.0.0.1])
by emsvr.com (8.12.11/8.12.10/CWT/DCE) with ESMTP id j7FMOVpI005046
for <***@sbt.net.au>; Mon, 15 Aug 2005 22:24:31 GMT
Received: (from ***@localhost)
by emsvr.com (8.12.11/8.12.11/Submit) id j7FMOV80005038
for ***@sbt.net.au; Mon, 15 Aug 2005 22:24:31 GMT
Resent-Date: Mon, 15 Aug 2005 22:24:31 GMT
Resent-Message-Id: <***@emsvr.com>
Resent-From: ***@gmail.com.yedrldepzydmpkk.emsvr.com
Received: from [64.233.162.195] by emsvr.com [208.185.243.103]
for <***@sbt.net.au>
on-behalf-of ***@gmail.com; Mon Aug 15 22:24:27 2005
Received: from zproxy.gmail.com (zproxy.gmail.com [64.233.162.195])
by emsvr.com (8.12.11/8.12.10/CWT/DCE) with ESMTP id j7FMOQMF004997
for <***@sbt.net.au>; Mon, 15 Aug 2005 22:24:27 GMT
Received: by zproxy.gmail.com with SMTP id 13so761521nzp
for <***@sbt.net.au>; Mon, 15 Aug 2005 15:24:33 -0700 (PDT)
Received: by 10.36.25.3 with SMTP id 3mr2563603nzy;
Mon, 15 Aug 2005 15:24:33 -0700 (PDT)
Received: by 10.36.141.18 with HTTP; Mon, 15 Aug 2005 15:24:32 -0700 (PDT)
Message-ID: <***@mail.gmail.com>
Date: Tue, 16 Aug 2005 08:24:32 +1000
From: Voytek Eymont <***@gmail.com>
To: ***@sbt.net.au
Subject: od google
Reply-To: Voytek Eymont <***@gmail.com>
MIME-Version: 1.0
Content-Type: text/html; charset="ISO-8859-1"
Content-Transfer-Encoding: quoted-printable
Notice-Requested-Upon-Delivery-To:
***@gmail.com.yedrldepzydmpkk.emsvr.com
Errors-To: ***@gmail.com.yedrldepzydmpkk.emsvr.com
X-Read-Notification: Courtesy of ReadNotify.com -
http://www.wtxqxjlpqumx11.ReadNotify.com
X-Virus-Scanned: amavisd clam sa at sbt.net.au
--
Voytek
Victor Duchovni
2005-08-15 23:26:47 UTC
Permalink
Post by Voytek
what else should I add to block readnotify.com's tracking as much as
possible without causing too many probs for my users ?
Content-Type: text/html; charset="ISO-8859-1"
X-Read-Notification: Courtesy of ReadNotify.com - http://www.wtxqxjlpqumx11.ReadNotify.com
X-Virus-Scanned: amavisd clam sa at sbt.net.au
"Notice-Requested-Upon-Delivery-To:" appears to be a proposal of DJBs
that never made it into an RFC, it may be supported by some qmail
versions... Never heard of "X-Read-Notification:". Disabling loading of
images in HTML email or even a content filter that turns HTML email into
text is necessary to disable web bugs, in the HTML mail.
--
Viktor.

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If my response solves your problem, the best way to thank me is to not
send an "it worked, thanks" follow-up. If you must respond, please put
"It worked, thanks" in the "Subject" so I can delete these quickly.
Voytek
2005-08-17 00:01:00 UTC
Permalink
<quote who="Victor Duchovni">
Post by Victor Duchovni
versions... Never heard of "X-Read-Notification:". Disabling loading of
images in HTML email or even a content filter that turns HTML email into
text is necessary to disable web bugs, in the HTML mail.
Viktor,

thanks.

as for turning HTML into text, where is that best done in...? amavisd.. ?
procmail..?
--
Voytek
Victor Duchovni
2005-08-17 05:59:12 UTC
Permalink
Post by Voytek
as for turning HTML into text, where is that best done in...? amavisd.. ?
procmail..?
Google? Also, some MUAs properly configured will convert all HTML
email to text...
--
Viktor.

Disclaimer: off-list followups get on-list replies or get ignored.
Please do not ignore the "Reply-To" header.

To unsubscribe from the postfix-users list, visit
http://www.postfix.org/lists.html or click the link below:
<mailto:***@postfix.org?body=unsubscribe%20postfix-users>

If my response solves your problem, the best way to thank me is to not
send an "it worked, thanks" follow-up. If you must respond, please put
"It worked, thanks" in the "Subject" so I can delete these quickly.
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