Wietse Venema:
> 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
Add here:
smtp_randomize_addresses
> Otherwise, many systems will return only one IP address.
>
> What is the "postconf -n" output and master.cf entry for the SMTP
> client?
>
> Wietse
>
>
