On Tue, 2 May 2023 at 15:54, Kolusion K via Postfix-users < postfix-users@postfix.org> wrote:
> Greetings > > > I have found some contradicting Postfix documentation and I feel that it > is my duty to make a revelation of it. > > https://www.postfix.org/postconf.5.html > > The inet_interface parameter is described as for receiving connections; > > The smtp_bind_address parameter is described as for making connections, > and note 1 describes the inet_interface parameter as for making > connections, contradicting the inet_interface parameter description. > > My experience with the inet_interface parameter is that it has no effect > on making connections. > Have you read the note 1 completely? It says it will use the addr from inet_interfaces by default. But The whole smtp_bind_address is just for IPv4. There is a separate smtp_bind_address6 for IPv6. And your issue was with IPv6. The only thing that is not entirely clear in the Note1 is if the value from inet_interface is used only when smtp_bind_address is not set, or it always overrides its value.
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