C7 Postfix Problem

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Hi all,

topology: java/tomcat app mailing to the outside via a C7 postfix relay server.

problem: java app submits mail to postfix but there is _nothing_ logged in the postfix maillog. This happen for 2/3 of all mail submitted. We cannot see any trace of this submitted mail either incoming/stored/outgoing.

Log from java app (shortened):
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]
DEBUG SMTP: useEhlo true, useAuth true DEBUG SMTP: trying to connect to host “xxxxxxxx”, port 25, isSSL false DEBUG SMTP: Attempt to authenticate AUTH LOGIN
235 2.7.0 Authentication successful DEBUG SMTP: use8bit false DEBUG SMTP: Verified Addresses DATA
354 End data with .
****message text***
250 2.0.0 Ok: queued as 8D83AC2756DF
QUIT
221 2.0.0 Bye

Log from the postfix server:
[root@xxx postfix]# grep 8D83AC2756DF /var/log/maillog
[root@xxx postfix]#

This happens for 2/3 of all messages send to this server.

Any idea what is happening here?

Thx Rainer

3 thoughts on - C7 Postfix Problem

  • Hi,

    Microsystems, Inc]

    first, I’d recommend to increase debug level of postfix (if it doesn’t totally flood your logs):

    /etc/postfix/master.cf:

    # Postfix master process configuration file. For details on the format
    # of the file, see the master(5) manual page (command: “man 5 master”).
    #
    # Do not forget to execute “postfix reload” after editing this file.
    #
    #
    ========================================================================# service type private unpriv chroot wakeup maxproc command + args
    # (yes) (yes) (yes) (never) (100)
    #
    ========================================================================smtp inet n – n – – SMTPd -v <= !!! #smtp inet n - n - 1 postscreen #smtpd pass - - n - - SMTPd smtpd -v instead of SMTPd — that will hopefully give some more insight. Best, T. —–BEGIN PGP SIGNATURE—

  • Hi Timo,

    Am 28.01.2016 um 15:27 schrieb Timo Schoeler:

    Did that and I think I have a candidate:

    # grep B8678C1DD078 /var/log/maillog

    Jan 28 15:35:11 x postfix/smtpd[17752]: input attribute value: B8678C1DD078
    Jan 28 15:35:11 x postfix/smtpd[17752]: B8678C1DD078: client=x, sasl_method=LOGIN, sasl_username=x Jan 28 15:35:11 x postfix/cleanup[17755]: B8678C1DD078:
    message-id=<1535444742.91269.1453991711730.JavaMail.tomcat@x>
    Jan 28 15:35:11 x postfix/smtpd[17752]: > x: 250 2.0.0 Ok: queued as B8678C1DD078
    Jan 28 15:35:11 x postfix/qmgr[17622]: B8678C1DD078: from=, size 507, nrcpt=1 (queue active)

    And another one working with the same destination domain:

    # grep 9DD4AC1DD078 /var/log/maillog

    Jan 28 15:35:11 x postfix/smtpd[17752]: input attribute value: 9DD4AC1DD078
    Jan 28 15:35:11 x postfix/smtpd[17752]: 9DD4AC1DD078: client=x, sasl_method=LOGIN, sasl_username=x Jan 28 15:35:11 x postfix/cleanup[17755]: 9DD4AC1DD078:
    message-id=<995903891.91260.1453991711622.JavaMail.tomcat@x>
    Jan 28 15:35:11 x postfix/qmgr[17622]: 9DD4AC1DD078: from=, size099, nrcpt=1 (queue active)
    Jan 28 15:35:11 x postfix/smtpd[17752]: > x: 250 2.0.0 Ok: queued as
    9DD4AC1DD078
    Jan 28 15:35:11 x postfix/smtp[17756]: 9DD4AC1DD078: to=    , relay=x:25, delay=0.11, delays=0.02/0/0.04/0.05, dsn=2.0.0, status=sent (250 2.0.0
    Ok: queued as AE7B241052)
    Jan 28 15:35:11 x postfix/qmgr[17622]: 9DD4AC1DD078: removed

    In the broken one there is a qmgr missing and SMTP is not sending out. Any ideas?

    Thx

  • Think it was a rate limit set in journalctl…

    I hopefully fixed it by:

    [root@xxxx ~]# cat /etc/systemd/journald.conf.d/noratelimit.conf
    [Journal]
    RateLimitBurst=0

    and

    [root@xxxx ~]# systemctl restart systemd-journald

    Thx

    Am 28.01.2016 um 16:15 schrieb Rainer Traut: