Hi, Thanks for sharing this! We track this by https://github.com/apache/arrow/issues/48623 .
Thanks, -- kou In <caogo0vaonfmxhbdabmx0beqsp94zhvmlob02sevc2vut+m5...@mail.gmail.com> "Re: Messages to builds@ list don't have Date or Message-ID headers" on Mon, 22 Dec 2025 12:30:54 +0000, sebb <[email protected]> wrote: > On Mon, 22 Dec 2025 at 12:00, sebb <[email protected]> wrote: >> >> It looks like most of the messages to the builds@ list are created >> without Date: or Message-ID: headers. >> >> These headers are supposed to appear in all messages. >> >> Email providers are starting to enforce stricter standards (e.g. GMail >> now drops emails with duplicated headers that should only appear >> once), and the builds@ emails may in future be silently dropped. > > Also the spam score is increased for messages without these headers. > >> Most email packages have methods to generate the required headers, but >> unfortunately not all of them add the headers by default. >> >> Sebb
