Hi,
Well.
i read it :
https://postfix.traduc.org/index.php/XFORWARD_README.html
But i don't know how to implement that in postfix (master.cf ?) ?! the
link explain the "protocol"...
there's no howto to do it...
if someone know an howto somewhere ?
Regards,
PG
On 11/10/2023 00:20, Wietse Venema via Postfix-users wrote:
testeur via Postfix-users:
Hi,
I don't understand how the External_Postfix_relay server could send
XCLIENT commands to the final postfix server ?
is there some modifications to do in the master.cf file ?
You asked how to impersonate a client or server TCP endpoint. Postfix
supports receiving TCP endpoint impersonation commands using two
protocols: XCLIENT (used by nginx) and the HaProxy protocol. The
primary use cases are load balancers and policy testing.
There is no code in Postfix to send XCLIENT or HaProxy commands
for the simple reason that no-one has needed it.
Postfix does support sending XFORWARD commands with remote SMTP
client information for the purpose of logging, not impersonantion.
It is typically used with SMTP-based content filters.
Wietse
Regards,
On 08/10/2023 22:19, Wietse Venema via Postfix-users wrote:
testeur via Postfix-users:
Hi,
I try to find a solution to forward the IP source from the postfix relay
to the final postfix server (internal).
Mail_Message sent to -> External_Postfix_relay (ip source from client
ok) -> Internal_Postfix_server (ip source from external postfix relay,
not the one from client's mail_message)
How can i do that ?
If you want to propagate the remote SMTP client IP address or the
External_Postfix_relay server IP address, the External_Postfix_relay
server could send XCLIENT commands to the final postfix server
(internal). See https://www.postfix.org/XCLIENT_README.html
Or you could use Postfix's HaProxy protocol support in the final
postfix server (internal) to get a similar result.
Wietse
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