The only thing I'll add to this is that since it's a technique that has in the past been used by spammers, it's possible it might trigger anti spam software. I've run my emails generated with this tracking code through spam filters and found it to be alright, but it is something worth keeping an eye on.
Oh, BTW, all the cases where I use this are for opt in email lists only. :) Will -----Original Message----- From: Alan Rother [mailto:[EMAIL PROTECTED] Sent: 15 July 2008 23:03 To: CF-Talk Subject: Re: Little brainstorming help needed (developing email app) Ignore Jeff (Sorry Jeff) and look at Will's answer. You can tell the browser / email client to "pretend" a cfm page is a valid entry for an img tag. <img src="http://www.mysite.com/emailtrack.cfm?uniqueemailid=fkuhsio8YFiushf "> The end client will try to request the cfm file over http, resulting in a hit to the CF server. How you handling actually logging the hit is up to the goals of your application though. On Tue, Jul 15, 2008 at 2:55 PM, William Nichols <[EMAIL PROTECTED]> wrote: > Hi Jeff, > > The CF Server won't catch the param though unless you tell it to > process calls for .gif files right? CF (I don't think) is not going > to process the img src that is a .gif is it? > > I say this because in the past I had taken over a site and needed to > add some code to each file that already existed, I had to tell CF to > process .html files to do it (I had tons of existing html files that > needed to go through CF), wouldn't you have to the same thing? > > >Same approach for images as links. > > > ><img src="http://yahoo.com/logo.gif?track=UNIQUE-PARAM-FOR-USER";> > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;203748912;27390454;j Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:309120 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
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