Hi!
In Germany, the latest ORBS action has caused some havoc. Apparently,
some danish site has done some scanning and reported all open relays
they found to ORBS. This has included some multi-level relays
including the major smarthosts of quite a few major ISPs in Germany.
de.admin.net-abuse.mail is currently discussing technical measures
against being blacklisted. Since I don't have a clue about how systems
behave under load, I'd like to ask the people who are running larger
installations to answer a technical question.
Suppose that a major site is running exim and is trying to do host
acceptance/rejection in a fine granularity. This site will have to
have big host lists in both sender_host_accept_relay and
sender_host_reject_relay lists. I assume that it is possible to have
these lists pulled into exim via a DBM file.
How would a sender_host_accept_relay list of - say - 10.000 IPs and/or
hostnames affect performance of an exim system on reasonably sized
hardware?
Any comments will be appreciated.
Greetings
Marc
--
-------------------------------------- !! No courtesy copies, please !! -----
Marc Haber | " Questions are the | Mailadresse im Header
Karlsruhe, Germany | Beginning of Wisdom " | Fon: *49 721 966 32 15
Nordisch by Nature | Lt. Worf, TNG "Rightful Heir" | Fax: *49 721 966 31 29
--
*** Exim information can be found at
http://www.exim.org/ ***
