mailboxes "Gel ö schte Elemente" and "Gesendete Elemente" - can't delete this folders

[Michael Grundmann]

hi,

this folder are created by cyrus! they are visible for every user. how can i
delete them? 
cyradmin shows following:

lm
Entw&APw-rfe (\HasNoChildren)
Gel&APY-schte Elemente (\HasNoChildren)
Gesendete Elemente (\HasNoChildren)

$<2>localhost> $<2>sam Gel&APY-schte Elemente michael cd
syntax error: cannot deal with `&' here
$<2>localhost> $<2>sam Gelöschte Elemente michael cd
usage: setaclmailbox mailbox id rights [id rights ...]
$<2>localhost> $<2>sam Gelöschte\ Elemente michael cd
setaclmailbox: michael: cd: Mailbox does not exist
$<2>localhost> $<2>

any hints?

michael

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Microsoft isn't the answer.
Microsoft is the question,
and the answer is no.        --   Grant Edwards