Re: abused webmail

[Keith Matthews <postfix@xxxxxxxxxxxxxxxxx>]

On Wed, 1 Sep 2004 09:41:40 -0700
John Groseclose <iain@xxxxxxxxxxx> wrote:

> At 6:28 PM +0200 9/1/04, Pavel Urban wrote:
> >  Unfortunately, no. These guys are real users using legitimate 
> >accounts and resources. Because this is freemail, they can (and do) 
> >register hundreds of accounts and use them. Of course, we can 
> >prohibit account creation from outside our country, but we find this 
> >solution suboptimal.
> 
> Let's see.
> 
> You're allowing anyone to go create a new account, then use it to 
> spam, and you're worried more about limiting the rate of the outbound 
> spam than verifying user information for those people signing up for 
> the accounts and preventing them from signing up for multiple 
> accounts?
> 
> I'll bet that within a short period of time your mailservers appear 
> on most of the DNSBLs on the planet. And that, IMNSHO, would be a 
> good thing.

I don't know about DNSBLs but I've already blocked all traffic from
their netblock at the firewall level. Nothing but spam for weeks from
their servers.