flags on backuped mails

[Marten Lehmann]

Hello,

> (1) That doesn't allow for per-user flags, only global flags.  Shared
>     folders.

ok, good point. I haven't worked with Shared Folders yet, but how and 
where are flags stored then? Isn't the global flag what you want? If I'm 
sharing a folder then I probably don't want to work on an email, that 
somebody else has already read and replied. But if everyone has its own 
flags I would never see if someone else touched a certain email.

> (2) With large-scale servers, this means that every flag-based action
>     involves a rename, which means file-system internal locks on the
>     directory.  This doesn't scale at the high end, but isn't a problem
>     for small to mid-size installations.

But I think rename()s are very cheap.

Anyway: I still don't have a working solution to backup and restore 
mails including flags. Shouldn't this be a point especially on large 
environments where the whole company mail traffic runs through IMAP so 
the administrators can more easily backup mails on the servers than they 
could by backing up the mailfolders on the client computers?

Regards
Marten