On Wed, Jul 22, 2015 at 05:55:04PM +0300, Edgaras Luko?evi?ius wrote:

> All this is done to put users into our own "classes" (eg. spammers vs.
> non-spammers).

If your autheneticated submission user is spamming, suspend their
ability to send outbound email.

> Because there are clean and dirty IP pools and if we see that
> user *may be* abusing email (or any other) system we want to put them to
> "dirty" pool for some time.

Don't operate a "dirty" pool.

> While this works with ordinary senders, it does
> not for aliases and spammers are abusing that (we have a few IP addresses
> blacklisted by gmail, yahoo, hotmail because of this).

Sounds like you're allowing users to create aliases that forward
mail to third-parties.  Don't let them do that.  Require confirmation
in response to a mail you generate, before activating the alias.

If not, explain in more detail.

-- 
        Viktor.

Reply via email to