Postfix needs to be patched so that the value of the inet_interfaces parameter is obeyed regardless of whether or not IPv6 (or other IP versions?) is enabled.
K > Sent: Wednesday, May 03, 2023 at 4:57 am > From: "Kolusion K via Postfix-users" <postfix-users@postfix.org> > To: "Viktor Dukhovni via Postfix-users" <postfix-users@postfix.org> > Subject: [pfx] Re: Fw: Re: Re: Contradicting Postfix documentation > > Its not naive, its a fact- Postfix is broken. The inet_interfaces parameter > is described in the documentation as making Postfix use only the interfaces > listed for the parameter. In reality, Postfix ignores the parameter by using > network interfaces that are not listed. > > There is nothing mentioned in the Postfix documentation under the > inet_interfaces parameter section that says the inet_interfaces parameter is > for IPv4 only and that it will not have an effect on IPv6 interfaces. That > claim is your fairy tale. > > > K > > > > > Sent: Tuesday, May 02, 2023 at 5:57 pm > > From: "Viktor Dukhovni via Postfix-users" <postfix-users@postfix.org> > > To: postfix-users@postfix.org > > Subject: [pfx] Re: Fw: Re: Re: Contradicting Postfix documentation > > > > On Tue, May 02, 2023 at 04:45:13PM +0200, Kolusion K via Postfix-users > > wrote: > > > > > Hang on a second... my Postfix is using a network interface that is > > > not the one set with the inet_interfaces parameter. So, my experience > > > is true- the inet_interfaces parameter has no effect. > > > > No, it has exactly the documented effects, perhaps different from your > > naïve expectations for your particular use case. This is not the forum > > to seek "validation", the most you can expect from this list is > > technical help to configure Postfix to meet your stated requirements. > > > > - The IPv4 addresses listed in inet_interfaces have no effect on > > the choice of outbound IPv6 address when IPv6 is enabled. > > > > - When inet_interfaces list no IPv4 addresses other than loopback > > addresses, or lists multiple non-loopback IPv4 addresses, then > > inet_interfaces also has no effect on the choice of outbound IPv4 > > addresses. > > > > - To be sure that a particular IPv4 or IPv6 source address is used, > > configure an explicit "smtp_bind_address" or "smtp_bind_address6". > > - To be sure that IPv6 is not used, set "inet_protocols = ipv4". > > - To be sure that IPv4 is not used, set "inet_protocols = ipv6". > > > > - If you have just one IPv4 address suitable for both sending and > > receiving mail, set it as the only IPv4 address in inet_interfaces. > > You then don't need an explicit "smtp_bind_address", though an > > explicit setting may be sensible in some cases. > > - If you have just one IPv6 address suitable for both sending and > > receiving mail, set it as the only IPv6 address in inet_interfaces. > > You then don't need an explicit "smtp_bind_address6", though an > > explicit setting may be sensible in some cases. > > - In either case disable any protocol that is not at all suitable for > > receiving or sending email. > > > > -- > > Viktor. > > _______________________________________________ > > Postfix-users mailing list -- postfix-users@postfix.org > > To unsubscribe send an email to postfix-users-le...@postfix.org > _______________________________________________ > Postfix-users mailing list -- postfix-users@postfix.org > To unsubscribe send an email to postfix-users-le...@postfix.org _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
