[Dovecot] Broken foldernames in mbox

[Peer Heinlein]

I have a mbox-User with some crazy foldernames:

-rw-------  1 vmail vmail  19238931 17. Dez 2011  Foo & Co
-rw-------  1 vmail vmail     82415 19. Nov 22:06 Foo &- Co

Dovecot can't handle that correctly:

# dovecot mailbox list -u user
Foo & Co
Foo & Co

dsyncing those folders produces some errors:

dsync(awad): Error: Mailboxes don't have unique GUIDs:
228d0731cb186750e9150000a69b85fa is shared by Foo & Co and Foo & Co


Peer


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