li...@rhsoft.net: > Am 16.12.2014 um 01:52 schrieb Wietse Venema: > > Peter Volkov: > >> always_add_missing_headers = yes > >> was added in main.cf, restarted server and postconf reports it is there. > >> According to documentation > >> http://www.postfix.org/postconf.5.html#always_add_missing_headers > >> I'm expecting to have To: header set in every e-mail, but still there is > > > > There is no RFC that requires a To: header > > but the postfix documentation pretends to add it :-)
That text was written before RFC 2822. I can't help it that the RFC authors are constantly improving the protocols. Wietse > always_add_missing_headers (default: no) > Always add (Resent-) From:, To:, Date: or Message-ID: headers when not > present. Postfix 2.6 and later add these headers only when clients match > the local_header_rewrite_clients parameter setting. Earlier Postfix > versions always add these headers; this may break DKIM signatures that > cover non-existent headers. >