> David Touzeau:
> > Dear
> > I would like to implement multiple instances on my 2.7 postfix.
> > After read the documentation (perhaps my english is very poor) i need to
> > have a confirmation.
> > did i need to disable master_service_disable and specify an IP address
> > for each instance in inet_interfaces token ?
> The idea is that every Postfix instance listens on the interface
> address specified with its own "inet_interfaces" parameter setting.
> If you have a null client then it usually will not have an SMTP listener.
> Either comment out smtpd in master.cf or use master_service_disable=inet
> in main.cf.
> Many thanks Wietse for your answer in a week-end :=)
> so if i want to create 27 instances, i need to create 27 virtual
> IP addresses and set each in "inet_interfaces" on each dedicated
Each Postfix instance needs a main.cf file where you configure the
myhostname, inet_interfaces, and the domain(s) that the instance
will receive mail for (in mydestination, virtual_mailbox_domains,
> I was thinking that i should create 26 null clients and one instance
> is in charge of routing connexions to the right instance.
If you put a mail router in front of the 26 instances, that mail
router will need to forward mail via an SMTP connection to the
Therefore, each Postfix instance still needs a main.cf file where
you configure the myhostname, inet_interfaces, and the domain(s)
that the instance will receive mail for (in mydestination,
> (in the same way of an Apache server with vhosts)
Apache does not forward requests for vhosts. Instead, Apache looks
at the HTTP client's "Host:" header in the http request, and then
it serves files from the document tree for that host.
It is clear Wietse ,
Many thanks for your time.
Have a nice week-end...