Re: [Sqlgrey-users] Pre Load

[Dan F. <da...@ha...>]

Micha Silver wrote:
> Where can I see more details on this 1.7.4 version, and the 
> "discrimination" feature?
In 1.7.4+ theres a README.DISCRIMINATION

It allows you to write regex's for any of the fields passed by postfix 
to sqlgrey. Such as HELO string, client ip, client hostname sender and 
recipient and so forth. If i remember correctly, theres even a bunch of 
examples.

By enabling discrimination, those who do NOT match any expression 
defined, skip greylisting entirely. ill give you two very small 
examples, and for example purpose, we assume theres is only 1 expression 
enabled:

client_name =~ ^unknown$
- Hosts without reverse-dns gets greylisted.

client_name !~ \.il$
- All hosts that do NOT end on ".il" gets greylisted.

We use 14 expressions that we have tweaked over time to catch quite a 
lot of spammersm while bothering only few costumers.