List all client session?

[torsten at gcrud.org]

Hi all,

this question is so stupid that I cannot believe it hasn't been asked, but
I did not find anything in the archives.

How can I get a list of all IMAP user sessions that are currently running
on a server?

I would need that for example as the FAQ suggests that if you want to
rename a mailbox you should make sure the user isn't currently logged in.
How would I be able to check this?

Regards,
Torsten

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