Milter-greylist

Brian W. Antoine <briana@...> wrote:

>   Checking that signature also places a higher load on your mail
> server, whitelisting their server ranges is a better solution.

But you need to have the server ranges. SPF is usefull here, with
something like this:

list "trusted-spf" domain {
        /gmail\.com$/
        /hotmail\.com$/
}
racl whitelist spf pass list "trusted-spf"
racl blacklist spf fail

Unfortunately, some mail provider do not publish SPF records (yahoo.com
for instance).

-- 
Emmanuel Dreyfus
http://hcpnet.free.fr/pubz
manu@...