On Tue, 6 Apr 2004, John Dalbec wrote:
> Is there any drawback to setting hosts_randomize on the transport? I notice
> that the default configure file doesn't do so.
Well, it depends if you want your hosts randomized or not! :-) This
isn't something that is "obvious", IMO.
> I think it's strange that you can set hosts_randomize on the "manualroute"
> router but not on the "dnslookup" router, whereas you can set "fallback_hosts"
> on both.
You can't set hosts_randomize on the dnslookup router because the MX
values determine the order of the (main) hosts, and this should not be
messed with.
I think it would be confusing to allow hosts_randomize on a dnslookup
router, even if it only applied to fallback_hosts. People don't read
manuals... With hindsight, maybe I should have gone for
fallback_hosts_randomize, but I think it's too late now.
--
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
