Mon, 12 Mar 2007
Greylisting Statistics
The postmaster of the muni.cz domain has finally enabled
greylisting on the central muni.cz relay. About two weeks ago
for our faculty subdomain, fi.muni.cz, a week ago for
the linux.cz domain as well.
The above graph shows the number of open outgoing SMTP connections
at linux.cz mailserver. It is nice to see it constantly
decreasing in the last week (yes, qmail's delayed bounces
are
evil).
As for my personal mailbox, yestedays monthly rotate of the spambox revealed
that I had slightly above 50 000 spams last month, which is a 50% drop
from the previous month. Given the greylisting has been active for two weeks
only (or a single week for linux.cz), the real number is somewhere
around 75-80%. Not bad, isn't it?