On 12/05/20 05:40 -0400, Viktor Dukhovni wrote:
Indeed the server slams the TCP socket closed after receiving the
client's RCPT command. Unclear why. You might try debug_peer_list
next, to see whether the server can log enough cleartext traffic
to expose the SMTP traffic inside TLS.
On 12.05.20 15:08, Alexander Vasarab wrote:
Thanks. Using debug_peer_list, I have a few more pieces of information.
May 12 14:27:21 vasaconsulting postfix/smtpd[3482]: > <data scrubbed>[<data
scrubbed>]: 235 2.7.0 Authentication successful
May 12 14:27:21 vasaconsulting postfix/smtpd[3482]: watchdog_pat: 0x55bec82e41e0
May 12 14:27:22 vasaconsulting postfix/smtpd[3482]: < <data scrubbed>[<data scrubbed>]:
MAIL FROM:<<data scrubbed>>
...lots of debug info e.g. send attr, etc...
May 12 14:27:22 vasaconsulting postfix/smtpd[3482]: > <data scrubbed>[<data
scrubbed>]: 250 2.1.0 Ok
May 12 14:27:22 vasaconsulting postfix/smtpd[3482]: watchdog_pat: 0x55bec82e41e0
May 12 14:27:22 vasaconsulting postfix/smtpd[3482]: < <data scrubbed>[<data scrubbed>]:
RCPT TO:<<data scrubbed>>
...lots of debug info e.g. config maps, etc...
May 12 14:27:22 vasaconsulting postfix/smtpd[3482]: > <data scrubbed>[<data
scrubbed>]: 250 2.1.5 Ok
May 12 14:27:22 vasaconsulting postfix/smtpd[3482]: watchdog_pat: 0x55bec82e41e0
May 12 14:27:22 vasaconsulting postfix/smtpd[3482]: warning: TLS library
problem: error:140E0197:SSL routines:SSL_shutdown:shutdown while in
init:../ssl/ssl_lib.c:2086:
May 12 14:27:22 vasaconsulting postfix/smtpd[3482]: smtp_get: EOF
...some match_hostname stuff, etc...
May 12 14:27:22 vasaconsulting postfix/smtpd[3482]: lost connection after RCPT from
<data scrubbed>[<data scrubbed>]
maybe some form of address veriification?
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