On Tue, 9 Jan 2007, Simon Lyall wrote:
Andy wrote:
You can see the routes advertised at the APE and WIX on the pages:
but it does provide a couple of lists that by some definition are in NZ.
I don't know what "some definition" is but by most definitions there are
quite a few non-NZ IPs there ( Specificly things like 203.59.0.0/17 that
ihug advertising on behalf of iinet).
Anyway, you don't want random IPs home luser IPs for greylisting, you want
IPs that are sending you non-spam email.
For private use, I found the easiest thing to do was to watch my mail logs
for a couple of days and then create appropriate regex. Much of my mail
is mailing list stuff, so a dozen or so rules took care of most of it.
For enterprise level use, I see value in a consolidated list of regex
expressions that'll cover the MTAs of Major ISPs - perhaps only as a
starting point.
For example i've noticed that Ihug's SMTP seems to be mainly care of
alias[x].ihug.co.nz so I have the following whitelist rule:
/^alias\d+.ihug.co.nz$/
Similarly Xtras seem to fit into the following patterns:
/^fep\d+.xtra.co.nz$/
/^mta\d+.xtra.co.nz$/
(I've also got some in there for Google/Gmail, Yahoogroups, LUGs, NZNOG,
etc...)
I suspect whats looked for is a 'starting point' that covers the NZ ISP
community, and I too would be interested.
If no-one's done it yet, perhaps some coordination amongst those deploying
Greylisting would be smart. The idea being not to get too granular too
quickly, though, as that might reduce the effectiveness of it. (You'd
have to trust the entries before you used em, instead of importing
blindly.)
Mark.
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