Hello, I have a issue with a message-id automatically added when not present.
Postfix mail system: postfix 25 (content-filter) --> AV 10026 --> postfix 10025 Summary of the problem: When a message arrives to the postfix mail system, if it not present, a message-id is added by the second postfix MTA (10025) while "always_add_missing_headers" is set to "no". Note that this second MTA listens to the loopback interface (see master.cf below). Logs: Jun 5 16:51:37 rhel62-agu-fe1 postfix/smtpd[3063]: C51FD40092: client=unknown[10.1.6.31] Jun 5 16:51:46 rhel62-agu-fe1 postfix/cleanup[3067]: C51FD40092: message-id=<> Jun 5 16:51:46 rhel62-agu-fe1 postfix/qmgr[2960]: C51FD40092: from=<al...@aa.com>, size=215, nrcpt=1 (queue active) Jun 5 16:51:57 rhel62-agu-fe1 postfix/smtp[3068]: C51FD40092: to=<al...@aa.net>, relay=127.0.0.1[127.0.0.1]:10025, delay=26, delays=14/0.01/0/11, dsn=2.0.0, status=sent (250 OK, sent 5B16A382_25736_9) [root@rhel62-agu-fe1 maillog]# zgrep 98BED400A0 20180605_maillog.log.gz Jun 5 16:51:57 rhel62-agu-fe1 postfix/smtpd[3070]: 98BED400A0: client=localhost[127.0.0.1] Jun 5 16:51:57 rhel62-agu-fe1 postfix/cleanup[3067]: 98BED400A0: message-id=<20180605145157.98bed40...@rhel62-agu-fe1.aa> Jun 5 16:51:57 rhel62-agu-fe1 postfix/qmgr[2960]: 98BED400A0: from=<al...@aa.com>, size=608, nrcpt=1 (queue active) Jun 5 16:51:57 rhel62-agu-fe1 postfix/smtp[3071]: 98BED400A0: to=<al...@aa.net>, relay=10.1.6.25[10.1.6.25]:25, delay=0.11, delays=0.05/0.01/0.03/0.03, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as BB9841411AC) Default configuration (25): mail_version = 2.7.3 always_add_missing_headers = no local_header_rewrite_clients = permit_inet_interfaces inet_interfaces = all master.cf (for 0026 configuration): 127.0.0.1:10026 inet n - y - - smtpd -o content_filter= -o myhostname=localhost.$mydomain -o local_recipient_maps= -o relay_recipient_maps= -o smtpd_restriction_classes= -o smtpd_client_restrictions= -o smtpd_helo_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o smtpd_milters= -o strict_rfc821_envelopes=no -o mynetworks=127.0.0.0/8 -o smtpd_tls_security_level=none -o smtpd_timeout=$smtpfilter_timeout Thank you for your support. Alain <signaturebeforequotedtext></signaturebeforequotedtext><signatureafterquotedtext></signatureafterquotedtext>
