On Tue, Dec 27, 2011 at 09:24:01PM +0100, Michael Maymann wrote: > thanks for your kind reply...:-) ! > yes this is exactly the case... and my internal local-mailers consist on > standard RHEL5+6 servers and NetApp's. > Our ISP is restricting mail from only 1 of our sites, so we need to relay > all our internal mail globally through this site. > > We can't prevent non-mail applications, as we don't have 100% control of > all hosts (LAB equipment etc.), so I guess it makes sense to still keep > local-mailer, at-least just to keep consistency.
If it's for consistency, you would *not* have local mailers, but you would configure everything to point at your HA postfix relay. However I personally like local mailers as long as something is automatically monitoring that they are well, and you may find programs that will not work otherwise. > Do you have a howto for this setup laying around somewhere > (local-mailer -> HA postfix relay) ?: Not really, but it's basically going through the "basic configuration readme" and answering For local mailers: What domain name to use in outbound mail: $your_domain.com What domains to receive mail for: none at all What clients to relay mail from: localhost only What destinations to relay mail to: default (nothing) What delivery method: indirect: relayhost = [mailout.$your_domain.com] For your HA relays: What domain name to use in outbound mail: $your_domain.com What domains to receive mail for: none at all What clients to relay mail from: your local networks What destinations to relay mail to: nothing (not applicable) What delivery method: direct Hope this helps.