Hi, > > Would I have to have multiple instances of postfix running to be able > > to control which IP is used for which domain? > > Give each instance its owninet_inteerfaces setting. > > This is covered in > http://www.postfix.org/BASIC_CONFIGURATION_READNE.html
Is there a document that provides a bit more explanation as to how this would work? Should I also be reading MULTI_INSTANCE? Or does it involve modifying master.cf and the SMTP server definitions? domain1 unix - - n - - smtp -o syslog_name=postfix-domain1 -o smtp_helo_name=domainone.com -o smtp_bind_address=192.168.1.1 I see in the BASIC_CONFIG doc I can define inet_interfaces like: inet_interfaces = virtual.host.tld but I don't understand how to do it for multiple interfaces or how to do it for multiple interfaces, each with their own hostname.