On 2019-08-28 14:07, Timo Sirainen via dovecot wrote:
On 25 Aug 2019, at 21.51, Sebastian Krause via dovecot
<dovecot@dovecot.org> wrote:
Hi,
In many mail setups a required feature (for privacy reasons) is to
hide the host and IP of clients (in the "Received" header) that use
the authenticated submission over port 587. In Postfix that's
possible (https://serverfault.com/q/413533/86332), but not very nice
to configure especially if you only want want to strip the Received
header for port 587 submissions, but not on port 25.
As far as I can see this configuration is not possible at all in the
Dovecot submission server because the function which adds the
Received header with the client's IP address
(smtp_server_transaction_write_trace_record) is always called in
submission-commands.c.
It would be very useful if the submission server could anonymize the
client with a single configuration option, then all the Postfix
configuration mess (and using SASL) could be skipped by simply using
the Dovecot submission server instead.
Yeah, it would be useful to hide the client's IP and do it by default.
Actually I think there shouldn't even be an option to not hide it. Or
would it be better or worse to just not have the Received header added
at all?
Better to just remove the Received header entirely.
Make lmtp_add_received_headers work on submission as well, maybe?
