So far:
8 unique spammers GL'd (GreyListed), a 9th got past but was rated 28.7
by SA.
1 of the 8th spammers has been firewalled - trying a DoS-style attack
(250~260 SMTP connections between when greylisting was activated and
when I firewalled them off) - greylisting started at 11:49, Sept 24,
started spamming at 18:51, firewalled at 23:50.
Genuine email is getting through, spammers who can't be bothered
re-trying aren't, and the only one who has gotten through so far has
been caught by SA. :D
Looking good indeed as I'd have probably received 10~20 spam out of the
GL'd hosts.
I'll have to develop some means of sifting through the log files instead
of doing it myself (unless someone else has already done this) - it took
30~60 minutes to sift through 12hrs of log file - I don't have the time
to do that every day for a 24hr period - any suggestions/hints on what
to do?
Jeff Jansen wrote:
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Tim Lyth wrote:
Thanks for the pointers to look in the folder.
Followed the rest of the instructions and my MX now greylists.
Goodbye spam (hopefully).
I'm sure many of us would appreciate it if you'd update the list in the
future on how well this works at preventing spam. (At least I know I
would.) I've seen mixed reviews about the efficacy of greylisting, and
I'd love to hear first-hand from someone using courier how effective it
really was.
15 messages in net.sourceforge.lists.courier-usersRe: [courier-users] Greylisting with ...
