Re: How accountability helps

Alan DeKok wrote:

> Meng Weng Wong <[email protected]> wrote:
> 
>>I believe there is a positive adoption dynamic there; reputable domains
>>don't want to be named in spam.
> 
> 
>   Never the less, there are domains which are knowingly transmitting
> viruses, spams, etc. from their users through their MTA's.  A small
> amount is acceptable, as no system is perfect.  But some systems
> transmit medium to large amounts, and won't stop.
> 
>   This will be a signficant problem for any SMTP verification system.
> Once you've verified the spam has come from an administrative domain
> which won't fix the problem, what do you do then?
> 

If you prove that a specific domain keeps allowing spam, you start to 
block it. This is what AOL has been doing to open relays. Of course AOL 
also notifies the owner and keeps retesting it. Most blacklists do not 
do that and I would think that most regular ISPs will not bother either.

Yakov