17 Dec
2006
17 Dec
'06
5:17 p.m.
On Sun, 17 Dec 2006, Brad Parker wrote:
I just turned on greylisting (two different versions,
one for each mx)
on a domain and the volume of spam went down 90%. I am willing to pay a
1 hour tax for that relief. The time I was wasting was costing me
money. Plus, I whitelist domains I do business with.
You don't have to go with the default 1 hour delay on milter-greylist:
I have mine set for 15 minutes, and it had the same result. On the other
hand, systems listed in the SORBS DNSRBL are given a 2 hour delay. I
whitelist frequently used servers (such as the classicmp server and some
of the yahoo groups servers) so there is no delay for those. You can also
play with the auto-whitelist time, so mail that does make it through the
delay will be automatically whitelisted for whatever time you like.
Mike Loewen mloewen at cpumagic.scol.pa.us
Old Technology http://ripsaw.cac.psu.edu/~mloewen/Oldtech/