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? -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)