I found out how to do it from command line: echo -e "Testing Mail\nThank you" | mailx -v -s "Testing Mail" -S "reply-to=yom...@example.com" m...@example.com<mailto:m...@example.com>
Is there a way to add a “Reply-To” header from the Postfix configuration ? I looked in the documentation but could not find anything about setting such a header, conditionally or otherwise. Thanks.