*** tidux@sdf.org [2021-10-28 05:33]:
>The use case is basically "IMAP server as remote backups" where even if
>your laptop gets run over by a truck you can still re-download all your
>mail from the server.

Personally I use Postfix'es "always_bcc" feature to make a copy of all
passing through correspondence, copying/backuping it separately. This is
for the case when I accidentally loose my main server/laptop. I can Bcc
to another server, storing all correspondence in single mbox/maildir.
They can be easily rsync-ed. In my opinion IMAP is a huge over engineering
and lack of simplicity and flexibility, if all you need is just a
storage, mainly append-only as a backup. However I am possibly far from
most user's use-cases related to email, because I have never ever used
IMAP at all, except for POP3 to download and remove correspondence from
public mail servers.

-- 
Sergey Matveev (http://www.stargrave.org/)
OpenPGP: CF60 E89A 5923 1E76 E263  6422 AE1A 8109 E498 57EF