[gaia e-mail] sanitizing web-bug images?

John Hopkins jhopkins at mozilla.com
Fri Aug 17 13:41:40 UTC 2012


On 12-08-16 8:09 PM, JoeS wrote:
> Not just 1x1 size, just received a payment verification Email with the 
> following:<img width="0" height="0" 
> src="http:blah/EmailTracking.serv?transaction number.
> One wonders why a multi-billion dollar company would want to know that 
> I read that mail.(Remote content blocked BTW)

Probably to gauge email campaign effectiveness.
- how many people did we email?
- of those, how many read it?
- of those, how many clicked on a link?
- of those, how many purchased something or took some other action?

Very useful stats to have.  Even non-profit companies use the same 
techniques.

John

>
> JoeS
>
> On 8/15/2012 16:34, Andrew Sutherland wrote:
>> To be clear, I'm not proposing making it impossible to view embedded
>> images or external images in e-mails.  Both of those are totally
>> supported.  I am proposing automatically removing self-identified 1
>> pixel by 1 pixel external images since they are unlikely to be anything
>> other than web bugs and can add confusion since we will prompt the user
>> if they want to show that external image (which may be the only image).
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