Image spam

[rob]

On Wed, 28 Feb 2007 10:10:57 -0800, Chris Yuzik wrote
> My impression is that pretty much anything that arrives with an attached 
> GIF these days is image spam. Are you seeing much ham with an attached GIF?
> 
> I suppose some people perhaps have their company logo attached to their 
> emails, but would it be better if they just had the appropriate code in 
> their signature to pull the company logo image from their website?
> 
> I would love to do something...anything...to thwart this damned image 
> spam. It's tempting to just strip GIF files out of emails, but then the 
> spam would likely start to arrive as a JPG or PNG.
> 
> Eventually, we might have to go back to the good old days when email was 
> plain text only.
> 
> Ideas?
> 

We add a spam score to all 3 image attachments.  At the begining we would get some false
positives, but have whitelisted user's who are valid with these in their emails. 
Currently, we might get 1 false positive every other day with a user who has some kind
of silly sig.