6 ms·

in postfix.conf, set header_checks = pcre:/etc/postfix/header_checks and in /etc/postfix/header_checks add: /In-Reply-To:.*msgid-2948573294867@example.com/ REJ

by korlja 4y ago

in postfix.conf, set header_checks = pcre:/etc/postfix/header_checks and in /etc/postfix/header_checks add: /In-Reply-To:.*msgid-2948573294867@example.com/ REJECT reply-storm However, blocking the whole thread that will originate is not as easy.

bo1024 4y ago
That msgid should be at the top of the “references” header in all thread replies, right?
- korlja 4y ago
  Should be, but I'm not so sure about Outlook, which is usually involved in all such reply-all-storms. Replies and threads in Outlook are very weird.