full-disclosure - CSS in E-Mails possible E-Mail-Validity Check for Spammers?

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Message-ID: <418A1352.5080300@c3b.de>
From: disclosure at c3b.de (Martin Thielecke)
Subject: CSS in E-Mails possible E-Mail-Validity Check
 for Spammers?

plonk@...enritter.de wrote:

> How dangerous is this? What about possible CSS-exploits?

Not that, but it works at Outlook Express 6.00.2900.2180 
(xpsp_sp2_rtm.040803-2158) too. It loads CSS-Files from an external 
server...

Greetings,
Martin Thielecke