ram:
>
> On Mon, 2010-01-25 at 14:43 +0100, Emmanuel Seyman wrote:
>
> > * ram [25/01/2010 14:41] :
> > >
> > > All mails are sent by a postfix server and this box has to relay the
> > > mails to 3 load balanced machines.
> > > No windows machines in the picture at all
> >
> > What is the DNS server? On what OS is it running?
> >
>
> The DNS server is bind 9.5x
> I did an analysis , of 20k mails in the past hour 12k mails hit 1 server
> and the others got 5k and 3k each
Postfix will randomize DNS results *only* if you haven't changed
the following (in main.cf or master.cf):
smtp_host_lookup
disable_dns_lookups
Otherwise, many systems will return only one IP address.
What is the "postconf -n" output and master.cf entry for the SMTP
client?
Wietse
