On Sun, Apr 30, 2023 at 07:11:45AM +0200, Kolusion K wrote:
> - Does the word "list" suggest any possibilities?
>
> Please shut the fuck up with your arrogance. Act like a normal person,
> otherwise, don't talk to me at all.
Best to accept help graciously, in all the ways it is offered.
> The connection is established,
Your log entry proves this is not the case. All three IPs timed out
during TCP connection setup. Take a look at Postfix SMTP timeouts:
smtp_connect_timeout = 30s
smtp_data_done_timeout = 600s
smtp_data_init_timeout = 120s
smtp_data_xfer_timeout = 180s
smtp_helo_timeout = 300s
smtp_mail_timeout = 300s
smtp_quit_timeout = 300s
smtp_rcpt_timeout = 300s
smtp_rset_timeout = 20s
smtp_starttls_timeout = 300s
smtp_tls_session_cache_timeout = 3600s
smtp_xforward_timeout = 300s
Only one of these timeouts is 30s. The target domain has 3 SMTP server
addresses. The third and final definitely timed out in SMTP connect, so
did the first two.
> but Postfix has been designed shit and does not differentiate in its
> log a connection that times and when trying to make a connection and a
> connection that has been made, but times out during the SMTP transaction.
You're welcome to switch to a different MTA. Please do.
> That is why I am asking if its possible to see a SMTP session, so I
> can see what is going on, because chances are the remote server is
> sending me a non-complaint command which Postfix doesn't know how to
> handle.
You're wasting your time. SMTP command logging will be of no help when
TCP connections fail.
--
Viktor.
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