[imp] all mails are deleted after clicking 'purge deleted'

[Tsungching Lin]

hello,

I just installed horde4-webmail from port tree of FreeBSD 8.2. with
imap-uw-2007f as imap server. I found that all mail were deleted after
clicking 'purge deleted'. It made me shock on what it happened. So, I
tried to create several folders, and purged them again. As I clicked the
"purge deleted" button, all mails were deleted again, even I didn't mark
any mail deleted yet. After trying several times, I found that if I
created a folder as MIX mailbox format, and all mails in that folder
were deleted. If I create it as traditional MBOX format, it worked fine.
so I think there must be something wrong with MIX format with
horde4-webmail. Could someone help me to deal with the problem? thank
you.

tclin