Apple mail fails with Submission

Stephan Bosch stephan at rename-it.nl
Tue Jan 8 10:42:42 EET 2019


Op 07/01/2019 om 21:54 schreef Ruud Voorjans:
> After the submission with dovecot it sends it to postfix, the postfix 
> log is:
>
> postfix/submission/smtpd[19509]: connect from example.org 
> <http://example.org>[192.168.1.1]
> postfix/submission/smtpd[19509]: client=example.org 
> <http://example.org>[192.168.1.1], sasl_method=PLAIN, 
> sasl_username=test at example.org <mailto:test at example.org>
> postfix/submission/smtpd[19509]: *warning: non-SMTP command from 
> example.org <http://example.org>[192.168.1.1]: 
> Content-Transfer-Encoding: 7bit*
> postfix/submission/smtpd[19509]: disconnect from example.org 
> <http://example.org>[192.168.1.1] ehlo=1 auth=1 mail=1 rcpt=1 
> unknown=0/2 commands=4/6
> postfix/submission/smtpd[19509]: connect from example.org 
> <http://example.org>[192.168.1.1]
> postfix/submission/smtpd[19509]: client=example.org 
> <http://example.org>[192.168.1.1], sasl_method=PLAIN, 
> sasl_username=test at example.org <mailto:test at example.org>
> postfix/submission/smtpd[19509]: *warning: non-SMTP command from 
> example.org <http://example.org>[192.168.1.1]: Content-Type: 
> text/plain; charset=us-ascii*
> postfix/submission/smtpd[19509]: disconnect from example.org 
> <http://example.org>[192.168.1.1] ehlo=1 auth=1 mail=1 rcpt=1 
> unknown=0/2 commands=4/6
> postfix/submission/smtpd[18882]: *timeout after END-OF-MESSAGE from 
> example.org <http://example.org>[192.168.1.1]*
> postfix/submission/smtpd[18882]: disconnect from example.org 
> <http://example.org>[192.168.1.1] ehlo=1 auth=1 mail=1 rcpt=1 data=1 
> commands=5
>
> As you can see it is a "non-SMTP command" given by Postfix.
> Am guessing it has something to do with the placement of the mail content.
> The outlook application is functional normally, i upgraded to 2.3.4 of 
> Dovecot but still same result.
>
> Not sure if it is a Dovecot issue or Postfix..

Yeah, but I was asking for a debug log from the Dovecot submission 
service. :) You sent a debug log from submission-login before, which 
doesn't help me, because it doesn't directly talk to Postfix.

Regards,

Stephan.


>
> On Sun, Dec 23, 2018 at 11:46 AM Stephan Bosch <stephan at rename-it.nl 
> <mailto:stephan at rename-it.nl>> wrote:
>
>     Hi,
>
>     Below, you have only the submission-login debug log (authentication).
>     I'm more interested in what happens after that. You'll need to enable
>     mail_debug=yes (at least for the user involved) to get that.
>
>     Regards,
>
>     Stephan.
>
>     Op 18/12/2018 om 17:17 schreef Ruud Voorjans:
>     > Postfix debug peer logging
>     >
>     > Dec 18 17:08:11 mail postfix/submission/smtpd[10626]: >
>     > server.example.org <http://server.example.org>
>     <http://server.example.org>[XX.XX.XX.XX]: 250 2.1.5 Ok
>     > Dec 18 17:08:11 mail postfix/submission/smtpd[10626]: watchdog_pat:
>     > 0x55ef4ec020180
>     > Dec 18 17:08:11 mail postfix/submission/smtpd[10626]:
>     > vstream_fflush_some: fd 10 flush 28
>     > Dec 18 17:08:11 mail postfix/submission/smtpd[10626]:
>     > vstream_buf_get_ready: fd 10 got 15
>     > Dec 18 17:08:11 mail postfix/submission/smtpd[10626]: <
>     > server.example.org <http://server.example.org>
>     <http://server.example.org> [ XX.XX.XX.XX]: BDAT
>     > 326 LAST
>     > Dec 18 17:08:11 mail postfix/submission/smtpd[10626]: match_string:
>     > smtpd_forbidden_commands: bdat ~? connect
>     > Dec 18 17:08:11 mail postfix/submission/smtpd[10626]: match_string:
>     > smtpd_forbidden_commands: bdat ~? get
>     > Dec 18 17:08:11 mail postfix/submission/smtpd[10626]: match_string:
>     > smtpd_forbidden_commands: bdat ~? post
>     > Dec 18 17:08:11 mail postfix/submission/smtpd[10626]:
>     > match_list_match: BDAT: no match
>     > Dec 18 17:08:11 mail postfix/submission/smtpd[10626]: >
>     > server.example.org <http://server.example.org>
>     <http://server.example.org> [ XX.XX.XX.XX]  : 502
>     > 5.5.2 Error: command not recognized
>     > Dec 18 17:08:11 mail postfix/submission/smtpd[10626]: watchdog_pat:
>     > 0x55ef4ec020180
>     > Dec 18 17:08:11 mail postfix/submission/smtpd[10626]:
>     > vstream_fflush_some: fd 10 flush 41
>     > Dec 18 17:08:11 mail postfix/submission/smtpd[10626]:
>     > vstream_buf_get_ready: fd 10 got 326
>     > Dec 18 17:08:11 mail postfix/submission/smtpd[10626]: <
>     > server.example.org <http://server.example.org>
>     <http://server.example.org> [ XX.XX.XX.XX]  :
>     > Content-Type: text/plain; charset=us-ascii
>     > Dec 18 17:08:11 mail postfix/submission/smtpd[10626]: warning:
>     > non-SMTP command from server.example.org
>     <http://server.example.org> <http://server.example.org>
>     > [ XX.XX.XX.XX]  : Content-Type: text/plain; charset=us-ascii
>     > Dec 18 17:08:11 mail postfix/submission/smtpd[10626]: >
>     > server.example.org <http://server.example.org>
>     <http://server.example.org> [ XX.XX.XX.XX]  ]: 221
>     > 2.7.0 Error: I can break rules, too. Goodbye.
>     >
>     >
>     > Op di 18 dec. 2018 om 17:01 schreef Ruud Voorjans
>     > <ruud.voorjans at gmail.com <mailto:ruud.voorjans at gmail.com>
>     <mailto:ruud.voorjans at gmail.com <mailto:ruud.voorjans at gmail.com>>>:
>     >
>     >     doveconf -n output:
>     >     # 2.3.2.1 (0719df592): /etc/dovecot/dovecot.conf
>     >     # Pigeonhole version 0.5.2 ()
>     >     # OS: Linux 4.18.0-12-generic x86_64 Ubuntu 18.10
>     >     # Hostname: mail.example.org <http://mail.example.org>
>     <http://mail.example.org>
>     >     auth_debug = yes
>     >     auth_debug_passwords = yes
>     >     auth_mechanisms = plain login
>     >     auth_verbose = yes
>     >     director_mail_servers = XX.XX.XX.XX
>     >     hostname = mail.example.org <http://mail.example.org>
>     <http://mail.example.org>
>     >     log_path = /var/log/dovecot.log
>     >     login_trusted_networks = XX.XX.XX.XX
>     >     mail_debug = yes
>     >     mail_location = mbox:~/mail:INBOX=/var/mail/%u
>     >     mail_privileged_group = mail
>     >     namespace inbox {
>     >       inbox = yes
>     >       location =
>     >       mailbox Drafts {
>     >         special_use = \Drafts
>     >       }
>     >       mailbox Junk {
>     >         special_use = \Junk
>     >       }
>     >       mailbox Sent {
>     >         special_use = \Sent
>     >       }
>     >       mailbox "Sent Messages" {
>     >         special_use = \Sent
>     >       }
>     >       mailbox Trash {
>     >         special_use = \Trash
>     >       }
>     >       prefix =
>     >     }
>     >     passdb {
>     >       args = proxy=y host=XX.XX.XX nopassword=y
>     >       driver = static
>     >     }
>     >     protocols = imap submission
>     >     service director {
>     >       fifo_listener login/proxy-notify {
>     >         mode = 0600
>     >         user = $default_login_user
>     >       }
>     >       inet_listener {
>     >         port = 9090
>     >       }
>     >       unix_listener director-userdb {
>     >         mode = 0600
>     >       }
>     >       unix_listener login/director {
>     >         mode = 0666
>     >       }
>     >     }
>     >     service imap-login {
>     >       executable = imap-login director
>     >     }
>     >     service submission-login {
>     >       executable = submission-login
>     >     }
>     >     ssl = required
>     >     ssl_cert =
>     </etc/letsencrypt/live/mail.example.org/fullchain.pem
>     <http://mail.example.org/fullchain.pem>
>     >     <http://mail.example.org/fullchain.pem>
>     >     ssl_cipher_list =
>     >
>      AES256+EECDH:AES256+EDH:ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5
>     >     ssl_dh =  # hidden, use -P to show it
>     >     ssl_key =  # hidden, use -P to show it
>     >     ssl_min_protocol = TLSv1.2
>     >     ssl_prefer_server_ciphers = yes
>     >     submission_relay_host = XX.XX.XX.XX
>     >     submission_relay_rawlog_dir = /var/log/dovecot.log
>     >     submission_relay_trusted = yes
>     >     verbose_ssl = yes
>     >
>     >
>     >     Logging:
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Connection created
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Received new command: EHLO [10.225.11.41]
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command EHLO; 250 reply: Submitted
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command EHLO: Ready to reply
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Trigger output
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Sending replies
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command EHLO: Completed
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Connection state reset
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command EHLO; 250 reply: Sent: 250-mail.example.org
>     <http://250-mail.example.org>
>     >     <http://250-mail.example.org> 8BITMIME BURL imap CHUNKING
>     >     ENHANCEDSTATUSCODES SIZE STARTTLS PIPELINING
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command EHLO: Destroy
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command EHLO; 250 reply: Destroy
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Trigger output
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     No more commands pending
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Sending replies
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     No more commands pending
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Received new command: STARTTLS
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command STARTTLS: Next to reply
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command STARTTLS; 220 reply: Submitted
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command STARTTLS: Ready to reply
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Trigger output
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Sending replies
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command STARTTLS; 220 reply: Sent: 220 2.0.0 Begin TLS
>     negotiation
>     >     now.
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command STARTTLS: Destroy
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Starting TLS
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Connection clear
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Connection state reset
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command STARTTLS; 220 reply: Destroy
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Trigger output
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     No more commands pending
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x10, ret=1:
>     >     before SSL initialization
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2001,
>     ret=1:
>     >     before SSL initialization
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: before SSL initialization
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: before SSL initialization
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: before SSL initialization
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: before SSL initialization
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2001,
>     ret=1:
>     >     before SSL initialization
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2001,
>     ret=1:
>     >     SSLv3/TLS read client hello
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2001,
>     ret=1:
>     >     SSLv3/TLS write server hello
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2001,
>     ret=1:
>     >     SSLv3/TLS write certificate
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2001,
>     ret=1:
>     >     SSLv3/TLS write key exchange
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2001,
>     ret=1:
>     >     SSLv3/TLS write server done
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: SSLv3/TLS write server done
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: SSLv3/TLS write server done
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Sending replies
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: SSLv3/TLS write server done
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     No more commands pending
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: SSLv3/TLS write server done
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: SSLv3/TLS write server done
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: SSLv3/TLS write server done
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: SSLv3/TLS write server done
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2001,
>     ret=1:
>     >     SSLv3/TLS write server done
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: SSLv3/TLS read client key exchange
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: SSLv3/TLS read client key exchange
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Sending replies
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: SSLv3/TLS read client key exchange
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     No more commands pending
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: SSLv3/TLS read client key exchange
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: SSLv3/TLS read client key exchange
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: SSLv3/TLS read client key exchange
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     >     ret=-1: SSLv3/TLS read client key exchange
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2001,
>     ret=1:
>     >     SSLv3/TLS read client key exchange
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2001,
>     ret=1:
>     >     SSLv3/TLS read change cipher spec
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2001,
>     ret=1:
>     >     SSLv3/TLS read finished
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2001,
>     ret=1:
>     >     SSLv3/TLS write change cipher spec
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2001,
>     ret=1:
>     >     SSLv3/TLS write finished
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x20, ret=1:
>     >     SSL negotiation finished successfully
>     >     Dec 18 16:36:39 submission-login: Debug: SSL: where=0x2002,
>     ret=1:
>     >     SSL negotiation finished successfully
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Sending replies
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     No more commands pending
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Received new command: EHLO [XX.XX.XX.XX]
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command EHLO; 250 reply: Submitted
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command EHLO: Ready to reply
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Trigger output
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Sending replies
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command EHLO: Completed
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Connection state reset
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command EHLO; 250 reply: Sent: 250-mail.example.org
>     <http://250-mail.example.org>
>     >     <http://250-mail.example.org> 8BITMIME AUTH PLAIN LOGIN BURL
>     imap
>     >     CHUNKING ENHANCEDSTATUSCODES SIZE PIPELINING
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command EHLO: Destroy
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command EHLO; 250 reply: Destroy
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Trigger output
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     No more commands pending
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Sending replies
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     No more commands pending
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Received new command: AUTH PLAIN
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command AUTH: Next to reply
>     >     Dec 18 16:36:39 auth: Debug: client in: AUTH    1  PLAIN
>     >      service=submission      secured=tls  session=
>     >     lip=XX.XX.XX.XX       rip=XX.XX.XX.XX   lport=587
>     >      rport=49679     local_name=mail.example.org
>     <http://mail.example.org>
>     >     <http://mail.example.org>
>      ssl_cipher=ECDHE-RSA-AES256-GCM-SHA384
>     >     ssl_cipher_bits=256     ssl_pfs= ssl_protocol=TLSv1.2 resp=
>     >     (previous base64 data may contain sensitive data)
>     >     Dec 18 16:36:39 auth: Debug: static(): lookup
>     >     Dec 18 16:36:39 auth: Debug: static(): Allowing any password
>     >     Dec 18 16:36:39 auth: Debug: client passdb out: OK 1
>     >      user=    proxy   host=  XX.XX.XX.XX  pass=
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command AUTH; 235 reply: Submitted
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command AUTH: Ready to reply
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Trigger output
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Sending replies
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command AUTH: Completed
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command AUTH; 235 reply: Sent: 235 2.7.0 Authentication
>     successful
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command AUTH: Destroy
>     >     Dec 18 16:36:39 submission-login: Info: proxy(  ): started
>     >     proxying to   XX.XX.XX.XX:587: user=<  >, method=PLAIN,
>     >     rip=XX.XX.XX.XX, lip=XX.XX.XX.XX, TLS, session=<>
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Disconnected: Connection closed
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     command AUTH; 235 reply: Destroy
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Connection destroy
>     >     Dec 18 16:36:39 submission-login: Debug: smtp-server: conn 
>      [0]:
>     >     Connection state reset
>     >     Dec 18 16:36:40 submission-login: Info: proxy(  ): disconnecting
>     >     XX.XX.XX.XX (Disconnected by server(0s idle, in=533, out=295)):
>     >     user=<  >, method=PLAIN, rip=XX.XX.XX.XX, lip=XX.XX.XX.XX, TLS,
>     >     session=<>
>     >     Dec 18 16:36:40 submission-login: Debug: SSL alert: close notify
>     >
>     >
>     >     Op di 18 dec. 2018 om 07:18 schreef Aki Tuomi
>     >     <aki.tuomi at open-xchange.com
>     <mailto:aki.tuomi at open-xchange.com>
>     <mailto:aki.tuomi at open-xchange.com
>     <mailto:aki.tuomi at open-xchange.com>>>:
>     >
>     >
>     >>         On 18 December 2018 at 02:30 Adi Pircalabu via dovecot <
>     >> dovecot at dovecot.org <mailto:dovecot at dovecot.org>
>     <mailto:dovecot at dovecot.org <mailto:dovecot at dovecot.org>>> wrote:
>     >>
>     >>
>     >>         On 2018-12-18 07:33, Ruud Voorjans wrote:
>     >>>         Dear all,
>     >>>
>     >>>         I'm running dovecot # 2.3.2.1 - Pigeonhole version
>     0.5.2 ()
>     >>>         - OS:
>     >>>         Linux 4.18.0-12-generic x86_64 Ubuntu 18.10 with
>     Submission.
>     >>>         It works great except with apple mail (Iphone).
>     >>>
>     >>>         I get an error with the MTA (postfix):
>     >>>         ""postfix/submission/smtpd[32552]: warning: non-SMTP
>     command
>     >>>         from
>     >>> mail.example.org <http://mail.example.org>
>     <http://mail.example.org> [1][xx.xx.xx.xx]:
>     >>>         Content-Transfer-Encoding: 7bit""
>     >>>
>     >>>         with other mail-client(s) (Outlook (Desktop and Iphone
>     app))
>     >>>         i have no
>     >>>         problem and it proxy-sends the e-mail beautiful out to the
>     >>>         recipient.
>     >>         Hardly anything to do with Dovecot. When it comes to email
>     >>         clients Apple
>     >>         Mail has been and is still one of the worst flops (no
>     offence
>     >>         intended,
>     >>         just my opinion based on personal experience). If you can
>     >>         reliably
>     >>         reproduce it, try and log the raw SMTP conversation between
>     >>         Postfix and
>     >>         the client by enabling per IP debugging in Postfix:
>     >>         postconf -e "debug_peer_level = 20"
>     >>         postconf -e "debug_peer_list = xx.xx.xx.xx"
>     >>         postfix reload
>     >>         where xx.xx.xx.xx is the unlucky client IP address.
>     >>
>     >>         Possibly some crappy SMTP PIPELINING implementation at the
>     >>         Apple end,
>     >>         who knows.
>     >>
>     >>         --
>     >>         Adi Pircalabu
>     >
>     >         It's not unconceivable that there are bugs in submission
>     >         either. Can you provide doveconf -n and submission rawlogs?
>     >         See https://wiki.dovecot.org/Submission for settings.
>     >
>     >         ---
>     >         Aki Tuomi
>     >
>


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