So und hier nun die Infos aus dem Log “/var/log/mail.log” - mit FQDN Eintrag in “/etc/postfix/smtp_auth”:
Feb 25 18:56:44 ucs3 postfix/postfix-script[29128]: refreshing the Postfix mail system
Feb 25 18:56:44 ucs3 postfix/master[2264]: reload -- version 2.11.3, configuration /etc/postfix
Feb 25 18:57:38 ucs3 postfix/smtpd[29675]: connect from localhost[127.0.0.1]
Feb 25 18:57:38 ucs3 postfix/smtpd[29675]: E1583507EF3: client=localhost[127.0.0.1]
Feb 25 18:57:38 ucs3 postfix/cleanup[29679]: E1583507EF3: message-id=<kcim.5a92f912.73e6.6455745e5f18b7c8@ucs3.MEINE-DOMAIN.local>
Feb 25 18:57:38 ucs3 postfix/qmgr[29132]: E1583507EF3: from=<ACCOUNT@MEINE-DOMAIN.de>, size=1973, nrcpt=2 (queue active)
Feb 25 18:57:38 ucs3 postfix/smtpd[29675]: disconnect from localhost[127.0.0.1]
Feb 25 18:57:39 ucs3 postfix/smtpd[29687]: connect from localhost[127.0.0.1]
Feb 25 18:57:39 ucs3 postfix/smtpd[29687]: 4311A507EF9: client=localhost[127.0.0.1], orig_queue_id=E1583507EF3, orig_client=localhost[127.0.0.1]
Feb 25 18:57:39 ucs3 postfix/cleanup[29679]: 4311A507EF9: message-id=<kcim.5a92f912.73e6.6455745e5f18b7c8@ucs3.MEINE-DOMAIN.local>
Feb 25 18:57:39 ucs3 postfix/qmgr[29132]: 4311A507EF9: from=<ACCOUNT@MEINE-DOMAIN.de>, size=2741, nrcpt=1 (queue active)
Feb 25 18:57:39 ucs3 postfix/smtpd[29687]: disconnect from localhost[127.0.0.1]
Feb 25 18:57:39 ucs3 postfix/smtpd[29687]: connect from localhost[127.0.0.1]
Feb 25 18:57:39 ucs3 postfix/smtpd[29687]: 46B03507EFB: client=localhost[127.0.0.1], orig_queue_id=E1583507EF3, orig_client=localhost[127.0.0.1]
Feb 25 18:57:39 ucs3 postfix/cleanup[29679]: 46B03507EFB: message-id=<kcim.5a92f912.73e6.6455745e5f18b7c8@ucs3.MEINE-DOMAIN.local>
Feb 25 18:57:39 ucs3 postfix/qmgr[29132]: 46B03507EFB: from=<ACCOUNT@MEINE-DOMAIN.de>, size=2442, nrcpt=1 (queue active)
Feb 25 18:57:39 ucs3 postfix/smtpd[29687]: disconnect from localhost[127.0.0.1]
Feb 25 18:57:39 ucs3 amavis[8335]: (08335-05) Passed CLEAN {RelayedInternal,RelayedOutbound}, LOCAL [127.0.0.1]:53718 <ACCOUNT@MEINE-DOMAIN.de> -> <emailbackups@MEINE-DOMAIN.local>,<ACCOUNT@TEST-DOMAIN.de>, Queue-ID: E1583507EF3, Message-ID: <kcim.5a92f912.73e6.6455745e5f18b7c8@ucs3.MEINE-DOMAIN.local>, mail_id: rujfuyjp44hX, Hits: 1.517, size: 1973, queued_as: 4311A507EF9/46B03507EFB, 337 ms
Feb 25 18:57:39 ucs3 postfix/smtp[29681]: E1583507EF3: to=<emailbackups@MEINE-DOMAIN.local>, relay=127.0.0.1[127.0.0.1]:10024, delay=0.4, delays=0.04/0.02/0/0.34, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10025): 250 2.0.0 Ok: queued as 4311A507EF9)
Feb 25 18:57:39 ucs3 postfix/smtp[29681]: E1583507EF3: to=<ACCOUNT@TEST-DOMAIN.de>, relay=127.0.0.1[127.0.0.1]:10024, delay=0.4, delays=0.04/0.02/0/0.34, dsn=2.0.0, status=sent (250 2.0.0 from MTA(smtp:[127.0.0.1]:10025): 250 2.0.0 Ok: queued as 4311A507EF9)
Feb 25 18:57:39 ucs3 postfix/qmgr[29132]: E1583507EF3: removed
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: smtp_stream_setup: maxtime=300 enable_deadline=0
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: < smtp.1und1.de[212.227.15.167]:25: 220 kundenserver.de (mreue004) Nemesis ESMTP Service ready
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: > smtp.1und1.de[212.227.15.167]:25: EHLO mail.MEINE-DOMAIN.me
Feb 25 18:57:39 ucs3 postfix/lmtp[29688]: 4311A507EF9: to=<emailbackups@MEINE-DOMAIN.local>, relay=127.0.0.1[127.0.0.1]:2003, delay=0.16, delays=0.02/0.01/0.01/0.12, dsn=2.1.5, status=sent (250 2.1.5 emailbackups@MEINE-DOMAIN.local Ok)
Feb 25 18:57:39 ucs3 postfix/qmgr[29132]: 4311A507EF9: removed
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: < smtp.1und1.de[212.227.15.167]:25: 250-kundenserver.de Hello mail.MEINE-DOMAIN.me [87.152.212.243]
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: < smtp.1und1.de[212.227.15.167]:25: 250-AUTH LOGIN PLAIN
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: < smtp.1und1.de[212.227.15.167]:25: 250-SIZE 69920427
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: < smtp.1und1.de[212.227.15.167]:25: 250 STARTTLS
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: server features: 0x1039 size 69920427
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: smtp_stream_setup: maxtime=300 enable_deadline=0
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: > smtp.1und1.de[212.227.15.167]:25: STARTTLS
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: < smtp.1und1.de[212.227.15.167]:25: 500 Syntax error, command unrecognized
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: connect to subsystem private/bounce
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: send attr nrequest = 0
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: send attr flags = 0
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: send attr queue_id = 46B03507EFB
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: send attr original_recipient = ACCOUNT@TEST-DOMAIN.de
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: send attr recipient = ACCOUNT@TEST-DOMAIN.de
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: send attr offset = 614
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: send attr dsn_orig_rcpt = rfc822;ACCOUNT@TEST-DOMAIN.de
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: send attr notify_flags = 0
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: send attr status = 5.0.0
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: send attr diag_type = smtp
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: send attr diag_text = 500 Syntax error, command unrecognized
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: send attr mta_type = dns
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: send attr mta_mname = smtp.1und1.de
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: send attr action = failed
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: send attr reason = TLS is required, but host smtp.1und1.de[212.227.15.167] refused to start TLS: 500 Syntax error, command unrecognized
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: private/bounce socket: wanted attribute: status
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: input attribute name: status
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: input attribute value: 0
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: private/bounce socket: wanted attribute: (list terminator)
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: input attribute name: (end)
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: 46B03507EFB: to=<ACCOUNT@TEST-DOMAIN.de>, relay=smtp.1und1.de[212.227.15.167]:25, delay=0.2, delays=0.01/0.03/0.16/0, dsn=5.0.0, status=bounced (TLS is required, but host smtp.1und1.de[212.227.15.167] refused to start TLS: 500 Syntax error, command unrecognized)
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: smtp_stream_setup: maxtime=300 enable_deadline=0
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: > smtp.1und1.de[212.227.15.167]:25: QUIT
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: name_mask: resource
Feb 25 18:57:39 ucs3 postfix/smtp[29690]: name_mask: software
Feb 25 18:57:39 ucs3 postfix/cleanup[29679]: 77253507EFD: message-id=<20180225175739.77253507EFD@ucs3.MEINE-DOMAIN.local>
Feb 25 18:57:39 ucs3 postfix/qmgr[29132]: 77253507EFD: from=<>, size=4511, nrcpt=1 (queue active)
Feb 25 18:57:39 ucs3 postfix/bounce[29695]: 46B03507EFB: sender non-delivery notification: 77253507EFD
Feb 25 18:57:39 ucs3 postfix/qmgr[29132]: 46B03507EFB: removed
Feb 25 18:57:39 ucs3 postfix/lmtp[29688]: 77253507EFD: to=<ACCOUNT@MEINE-DOMAIN.de>, relay=127.0.0.1[127.0.0.1]:2003, delay=0.16, delays=0/0/0.01/0.14, dsn=2.1.5, status=sent (250 2.1.5 ACCOUNT@MEINE-DOMAIN.de Ok)
Feb 25 18:57:39 ucs3 postfix/qmgr[29132]: 77253507EFD: removed
Wie gesagt - trage ich direkt die IP (212.227.15.183) in die “/etc/postfix/smtp_auth” Datei ein - -> geht es.
Vielen Dank vorab
Pepe