Hi Barry,
>This may be a silly question, but is there a particular reason you want >two completely separate instances? Out the box postfix can support >multiple IP's and even if youa re wanting slightly different configs, >this can be done by provideing appropriate overrides in the master.cf, >and binding smtpd's to different IP's. I need to have a postfix relay which is able to separate customers who have an antispam service provided by another company, and the other who don't have antispam service. One IP is able to receive a list of domains and recipients from antispam relay. One IP is will receive the others accounts (and not the antispam one) and read another mysql table with recipients adress. The two instances relay email to the same mailbox server in DMZ. It's possible that postfix can do that in another way, but I can't find it, and that's the settings that I use from 4 years on another server which I need to change. The old server with postfix-2.2.8 works fine. Best regards Laurent