webmail folder delete permission denied

[ilya]

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Hello Cyrus Gurus!
In my outlook I got an extra folder all of the sudden. it's named
someone.username I tried to delete it with no luck. It says permission
denied.
I tried to delete from webmail - same story. I logged into the server as
cyrus user and looked for this folder in /var/spool/mymailbox and can't
find it.
Did anyone experience same issue?
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