RE: www.readnotify.com

["Ebeling, Jr., Herman Frederick" <hfebelingjr () lycos com>]

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- ----Original Message----
From: Dan Denton [mailto:ddenton () PAYLESSOFFICE com]
Sent: Thursday, 26 January, 2006 17:25
To: Larry Offley; hfebelingjr () lycos com
Cc: security-basics () securityfocus com
Subject: RE: www.readnotify.com

: Would not the easiest way to block the notification be to block access
: to that URL/Address entirely on your gateway device (router, proxy,
: etc...)? Blocking access to that address should block the accessing of
: the image, therefore no access to the image would be logged on their
: server.
: 
: Dan Denton
: Information Technology Manager, CCNA
: Pay-LESS Office Products
: 
: 
: 
: -----Original Message-----
: From: Larry Offley [mailto:lucullus () telus net]
: Sent: Wednesday, January 25, 2006 2:43 AM
: To: hfebelingjr () lycos com
: Cc: security-basics () securityfocus com
: Subject: Re: www.readnotify.com
: 
: 
: Yes and no. First we need to know how they know you read your e-mail. I
: common way is the use of a "Web bug" these usually consist of a small
: 1x1 image file usually the same color as the back ground of a html
: e-mail message or transparent. This method is easy and works on all
: platforms (Linux/mac/pc). If you use a mail client that doesn't auto
: download referenced images, then the server hosting the image can't
: tell you have read the message. Read the provided wiki link for more on
: the subject.
: 
: Wiki on web bugs   http://en.wikipedia.org/wiki/Webbug
: 
: Larry Offley
: 
: Ebeling, Jr., Herman Frederick wrote:
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: : Does anyone know anything about a web site called
: : (http://www.readnotify.com/)?  If so does anyone know of anyway to
: : prevent it from sending it's return receipts to the sender?
: : 
: : Herman
: : Live Long and Prosper
: :  ___________________          _-_
: :  \==============_=_/ ____.---'---`---.____
: :              \_ \    \----._________.----/
: :                \ \   /  /    `-_-'
: :            __,--`.`-'..'-_
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: :                `--.____,-'
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Dan,

        Wouldn't one need to know ALL of their server's names in order to be sure
that they've blocked ALL routes back to www.readnotify.com ?  I mean just
blocking http://www.readnotify.com isn't going to be enough, is it?

        And how would one go about "blocking" their so-called "self-destructing"
E-Mails, or sender revocable E-Mails?  As well as how would one go about
getting "around" their E-Mails that are suppose to prevent the recipient
from either forwarding, or printing out of an E-Mail?

Herman
Live Long and Prosper
 ___________________          _-_
 \==============_=_/ ____.---'---`---.____
             \_ \    \----._________.----/
               \ \   /  /    `-_-'
           __,--`.`-'..'-_
          /____          ||-
               `--.____,-'

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