>> The docs say >> >> when inet_interfaces specifies no more than one IPv4 address, >> and that address is a non-loopback address, it is automatically >> used as the smtp_bind_address > > That text was written before IPv6 wsupport was added. There should be similar > text for IPv6.
Yes i assumed the same behavior applies to both IPv4 and IPv6. And I personally don't see an issue with the way the documents are written because there is a separate section for smtp_bind_address6 which explains the same for IPv6. But what I'm still wondering is will postfix attempt to use the private IP on the second interface if I'm only setting ANY in the configs and not specifying any IP's for the bind addresses.