jeff fisher hunqrbsqnbugmailcom wietse venema wrote mouss pavel urban wrote hello two instances postfix two maincfmastercf files separate directories one configuration directory rest access aliases transport files anything else separated instance want nearly identical behavior ive tried way looks ok want avoid surprises future thanks different queue directories lookup maps may shared must different config_directory queue_directory data_directory postfix 25 later tls caches verify caches try cheat symbolic links share files anyway things shared may want change syslog_name one configurations differentiate syslog messages pgp key id 0x19c987f5 pgp mail preferred fri 08 aug 2008 145227 0100 two instances