Re: [exim] Postfix Xforward in exim?? OS fingeprinting in ex…

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Autor: Andreas Metzler
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A: exim-users
Assumpte: Re: [exim] Postfix Xforward in exim?? OS fingeprinting in exim?
Marc Sherman <msherman@???> wrote:
> maciek@??? wrote:
>> Is there implementation of postfix Xforward in exim?
>> I want to use exim with p0f fingerprinting and amavisd-new but i cannot
>> because of lack Xforward mechanism.


> What does Xforward do?


http://www.postfix.org/XFORWARD_README.html
If (Gateway-) MTA1 forwards a mail to (internal) MTA2, it can pass on
the original SMTP dialogue to MTA2:

220 server.example.com ESMTP Postfix
EHLO client.example.com
250-server.example.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-XFORWARD NAME ADDR PROTO HELO
250 8BITMIME
XFORWARD NAME=spike.porcupine.org ADDR=168.100.189.2 PROTO=ESMTP
250 Ok
XFORWARD HELO=spike.porcupine.org
250 Ok
MAIL FROM:<wietse@???>
250 Ok
[...]

cu andreas
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