Re: New I-D: draft-koch-subject-tags-considered-00.txt

> > you really want to file things based on envelope information, like MAIL
> > FROM or (with subaddresses) RCPT TO.
> Using List-ID for this purpose seem perfectly fine to me.  Here's my
> Sieve snippet for this list [1]:
>
> if header :contains "List-Id" "ietf-822.imc.org" {
>       fileinto "INBOX.rfc822";
> }
that (or using return-path) doesn't fail as often.  it doesn't
necessarily do what you want if someone "resends" you a message from
the list - but that's not a very common case.