Vincent Lefevre: > Under Debian, after the postfix upgrade from 3.5.6 to 3.5.13, > postconf now outputs duplicate bounce_notice_recipient lines: > > zira:~> postconf | grep '^bounce_notice_recipient' > bounce_notice_recipient = postmaster > bounce_notice_recipient = postmaster > > Can you reproduce this?
Yes. It was introduced with postfix-3.3-patch19, postfix-3.4-patch22, postfix-3.5-patch12, and postfix-3.6-patch02. 20210708 Bugfix (introduced: 1999): the Postfix SMTP server was sending all session transcripts to the error_notice_recipient, instead of sending transcripts of bounced mail to the bounce_notice_recipient. File: smtpd/smtpd_chat.c. The above replaced error_notice_recipient with bounce_notice_recipient, but did not update the default setting. The fix for the fix is below. Wietse 20211115 Bugfix (introduced: 20210708): duplicate bounce_notice_recipient entries in postconf output. The fix to send SMTP session transcripts to bounce_notice_recipient was incomplete. Reported by Vincent Lefevre. File: smtpd/smtpd.c. The same fix applies to postfix-3.3.19, postfix-3.4.22, postfix-3.5.12, postfix-3.6.2, and later. --- /var/tmp/postfix/src/smtpd/smtpd.c 2021-07-24 18:20:43.000000000 -0400 +++ src/smtpd/smtpd.c 2021-11-15 08:42:43.088958256 -0500 @@ -6419,7 +6419,7 @@ VAR_EOD_CHECKS, DEF_EOD_CHECKS, &var_eod_checks, 0, 0, VAR_MAPS_RBL_DOMAINS, DEF_MAPS_RBL_DOMAINS, &var_maps_rbl_domains, 0, 0, VAR_RBL_REPLY_MAPS, DEF_RBL_REPLY_MAPS, &var_rbl_reply_maps, 0, 0, - VAR_BOUNCE_RCPT, DEF_ERROR_RCPT, &var_bounce_rcpt, 1, 0, + VAR_BOUNCE_RCPT, DEF_BOUNCE_RCPT, &var_bounce_rcpt, 1, 0, VAR_ERROR_RCPT, DEF_ERROR_RCPT, &var_error_rcpt, 1, 0, VAR_REST_CLASSES, DEF_REST_CLASSES, &var_rest_classes, 0, 0, VAR_CANONICAL_MAPS, DEF_CANONICAL_MAPS, &var_canonical_maps, 0, 0,