On 2020-12-08 17:56 GMT, Chris Green wrote: > So, is there something I can configure in postfix to always add some > text of some sort (the hostname is the obvious thing) to one of From:, > To: or Subject: ?
Try something like main.cf sender_canonical_maps = hash:/etc/postfix/sender-canonical-map sender-canonical-map root foo-root HTH, -- Nick