Hi, On Wednesday, 2023-05-24 21:34:08 +0100, Ian Collier wrote:
> On Wed, May 24, 2023 at 07:54:32PM +0200, Ludolf Holzheid wrote: > > From RFC 5322: "The message identifier (msg-id) syntax is a limited > > version of the addr-spec construct enclosed in the > > angle bracket characters, "<" and ">"." > > > That is, the less-than and greater-than signs _are_ part of the > > message id and are required for standard compliance. > > OK, but at the bottom of section 3.6.4 of the same RFC: > > Semantically, the angle bracket characters are not part of the > msg-id; the msg-id is what is contained between the two angle bracket > characters. *Semantically* MUAs don't interpret semantics of header fields. > (That is in slight contradiction to the syntax diagram which clearly > makes the angle brackets part of the definition of "msg-id".) Whatever the brain semantically might mingle there, it's not an excuse to omit the angle brackets. The syntax requires them to be present and 3.6.4 is clear on that: msg-id = [CFWS] "<" id-left "@" id-right ">" [CFWS] Eike -- OpenPGP/GnuPG encrypted mail preferred in all private communication. GPG key 0x6A6CD5B765632D3A - 2265 D7F3 A7B0 95CC 3918 630B 6A6C D5B7 6563 2D3A Use LibreOffice! https://www.libreoffice.org/
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