[tin-users] References header threading?

[Urs Janßen]

In <mailman.1335.1676051967.1791.tin-users at tin.org> on Fri, 10 Feb 2023 18:59:22,
    tjp at ctrl-c.club wrote:
> unorthodox (https://tildegit.org/tjp/iris-news) and the message-ids
> don't look typical (instead they are base64-encoded hashes wrapped in
> `<` and `>`, so look like `<2aFR+WSuyvQEb8RTQJe8qInB374=>`.

tin checks for valid message-ids (refs.c:valid_msgid() and
post.c:damaged_id()) - including a check for '@', if that is missing the
id is regarded invalid and skipped when building the thread-tree.

> Is there another setting I'm missing? This server is under my control,
> should I have it build different-looking message-ids?

yes, see RFC 5536 3.1.3. Message-ID