Rafael Azevedo:
> What we need is a complete conversation between the servers.
>
> We're being requested to give the detailed messages between the
> servers to validate the message delivery.
>
> This would be an example of the log needs:
>
> 2019-06-12 12:44:47 SERVER -> CLIENT: 220 indus.server.net ESMTP Postfix
If you want to log all inputs/responses between a remote SMTP client
and a local Postfix server, then that is not built into Postfix.
Use tcpdump plus a tool to convert packets into sessions.
Wietse
