On Thu, 17 Jul 2003, Wakko Warner wrote:
> Some spammers will hit the primary once and never try again. Since the host
> hasn't been seen before, the message won't come through. Some spammers will
> only hit the secondary server. If they do, the secondary will check the DB
> and if it hasn't seen this host, assume it's a spam and blacklist.
... and when your primary interface hardware breaks?
... and when your secondary inferface hardware breaks?
... and when there's a screwup in somebody's router so that only the
secondary IP address is reachable?
OK, relatively unlikely, especially if there's only one interface with 2
IP addresses. But I would be scared of this kind of thing.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
Get the Exim 4 book: http://www.uit.co.uk/exim-book
