-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 01/28/2016 03:24 PM, Rainer Traut wrote: > Hi all, Hi, > 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 <CR><LF>.<CR><LF> ****message text*** 250 > 2.0.0 Ok: queued as 8D83AC2756DF QUIT 221 2.0.0 Bye > > Log from the postfix server: [root at xxx postfix]# grep 8D83AC2756DF > /var/log/maillog [root at xxx postfix]# > > This happens for 2/3 of all messages send to this server. > > Any idea what is happening here? 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. > Thx Rainer Best, T. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iF4EAREIAAYFAlaqJWUACgkQuSPmkPhAW0r0FQD/dCq8EBA3OH8PKRSBmO83llOw u54IjRZwZTk51N9u8A4A/A91QRmkVXXIKNfdC0viGP8ar2proK+ju6Gdo1s8cz9C =7ELn -----END PGP SIGNATURE-----