Thank you Viktor, We already have that log, but they're asking for additional confirmation.
Thanks in advance. Em qua, 12 de jun de 2019 às 16:11, Viktor Dukhovni <postfix-us...@dukhovni.org> escreveu: > > On Wed, Jun 12, 2019 at 03:52:10PM -0300, Rafael Azevedo wrote: > > > Its the communication between the servers. > > > > [client] >>> [server] >>> [final destination's server] > > > > So this is the part they want me to store: > > > > [server] > EHLO > MAIL FROM > RCPT TO > DATA > RESULT (ACCEPTED OR > > REJECTED) [final destination's server] > > > > They need to have the confirmation of the acceptance of the message by > > the final destination's provider. > > The final confirmation "RESULT" is logged by Postfix in the > postfix/smtp log entry. For example (with "--->" in front of the > "RESULT" text): > > Jun 12 14:18:35 amnesiac postfix/smtp[6184]: CE26572115: > to=<postfix-users@postfix.org>, relay=mail.cloud9.net[168.100.1.4]:25, > delay=4.3, delays=0.03/0.02/0.34/3.9, dsn=2.0.0, status=sent > ---> (250 2.0.0 Ok: queued as 119D933B042) > > The "RCPT TO" is in the "to=" field, and the "MAIL FROM" is in the > associated qmgr log entry: > > Jun 12 14:18:30 amnesiac postfix/qmgr[61815]: CE26572115: > from=<postfix-us...@dukhovni.org>, size=1528, nrcpt=1 > (queue active) > > The rest they don't need. Postfix default logging is sufficient > to track messages and determine delivery success/failure without > jumping through hoops with SMTP session logging. > > -- > Viktor.