Re: More anti-spam tuning.

Scott Walde wrote:

> So far, my greylist has 14 rows, with 5 of those being spams that
> successfully navigated gld (and two more I expect to, soon), and two
> rows are gmail, which hasn't. That's not a very good ratio in my
> opinion.

Well, it's been running for about 24 hours now. I'm not getting the 90%
results quoted by some people, but the stats right now are 320 blocked,
and 433 passed. The majority of those passed are still SPAM, but I
suppose if its a simple way to reduce spam by half, it's still worth
it. I guess I just had my hopes set too high. This also brings up an
interesting observation... This system recieves an average of about 3500
messages per day. About half of those are rejected by RBLs. I have
configured gld to whitelist any internal emails. So, if gld only logged
750 messages, about 1000 messages yesterday were internal to the
organization. Does anyone else have stats of internal/external email
ratios on some largish organizations? (This system handles mail for
about 600 users.)

There's another interesting observation... some people get way more than
their share of email. With about 12000 messages per week delivered,
that's an average of only about 20 per user. One user got 815 messages
last week. (I've seen his inbox -- it's ALL spam.) It will be
interesting to see his stats next week. He's been over 600/week since
late march.

ttyl
srw
Received on Tue May 16 11:30:19 2006