Hi, Wietse: thanks for your quick reply :) !
We have the following internal clients: - R&D Linux sendmail clients - some special_home_brew websolutions that endusers maintain - NetApp storage systems - etc. Mail path: Internal_clients->my_postfix_mailrelay(s)->external_receiving_mailserver We're not receiving any external mails...! How do I best setup a loadshared failover postfix mailrelay solution for this on RHEL6 ? thanks in advance :-) ! ~maymann 2012/3/10 Wietse Venema <wie...@porcupine.org> > Michael Maymann: > > If RoundRobin is best practise/preferred solution, should I then do: > > > > ; zone file fragment > > IN MX 10 mail.example.com. > > .... > > mail IN A 192.168.0.4 > > IN A 192.168.0.5 > > IN A 192.168.0.6 > > > > or > > > > ; zone file fragment > > IN MX 10 mail.example.com. > > IN MX 10 mail1.example.com. > > IN MX 10 mail2.example.com. > > .... > > mail IN A 192.168.0.4 > > mail1 IN A 192.168.0.5 > > mail2 IN A 192.168.0.6 > > > > I think I would prefer the first solution - as a single hostname can be > > distributed to "endusers". > > MX lookups are for MTAs, end-user mail clients should connect > to the A record on port 587. > > Wietse >
