Re: Blocking google IPs?

Alex <[email protected]> writes:

> I can't explain to users that day after day, there's some random gmail user
> being blocked because one of the world's largest providers is allowing
> their IPs used by millions of other users to be abused.
>
> There's nothing my users or the legitimate users sending email to my users
> can do about it, and it's always reactionary - it's not like I can explain
> to them that if their users use one particular Google IP that they could
> have incoming mail blocked.

That's not true.   People can stop using gmail.  If it were anybody but
gmail that had this degree of outbound spam, they'd just be blocked.

My experience as a receiver is that mail that arrives from gmail sorts
into

  legit mail from a known addr (a fair bit)
  legit mail from an unknown addr (almost never)
  spam from an unknown (a fair bit)

To me the right approach is to make sure txrep gives negative points to
addresses that your users send mail to.