Hello,

I have a question or a problem of understanding.

When I try to connect through the the command line utility openssl to
port smtp or submission I get this output:

$ openssl s_client -connect odin42:25
CONNECTED(00000003)
139782539474752:error:1408F10B:SSL routines:ssl3_get_record:wrong
version number:ssl/record/ssl3_record.c:252:
---
no peer certificate available
---
No client certificate CA names sent
---
SSL handshake has read 5 bytes and written 176 bytes
Verification: OK
---
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
    Protocol  : TLSv1.2
    Cipher    : 0000
    Session-ID:
    Session-ID-ctx:
    Master-Key:
    PSK identity: None
    PSK identity hint: None
    SRP username: None
    Start Time: 1547924099
    Timeout   : 7200 (sec)
    Verify return code: 0 (ok)
    Extended master secret: no
---
$

And in /var/log/maillog on the server these messages appears:

Jan 19 19:41:07 odin42 smtpd[25442]: 430c551fc99f310d smtp connected
address=194.96.2.67 host=194-96-2-67.adsl.highway.telekom.at
Jan 19 19:41:07 odin42 smtpd[25442]: 430c551fc99f310d smtp bad-input
address=194.96.2.67 host=194-96-2-67.adsl.highway.telekom.at result="500
5.5.1 Invalid command: Pipelining not supported"
Jan 19 19:41:07 odin42 smtpd[25442]: 430c551fc99f310d smtp disconnected
address=194.96.2.67 host=194-96-2-67.adsl.highway.telekom.at reason=quit

When I connect to smtps port, everything works fine.

Here is my listen setup of OpenSMTPD:

# listen setup
listen on lo0
listen on lo0 port 10028 tag DKIM
listen on egress tls pki mx1.krottmayer.com.pki auth-optional
listen on egress smtps pki mx1.krottmayer.com.pki auth
listen on egress port submission tls pki mx1.krottmayer.com.pki auth

Could somebody check my configuration, please?

Thanks in advance!

-- 
Best regards,

Johannes

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