[dovecot] some problem with dovecot

hi, yesterday we switch to courir to dovecot the whole company. there is good and bad news. the good one that about 200 people use outlook and outlook works fine (after we make some registry hack to delete the INBOX form imap root folder, which was required for courier but not for dovecot). the bad news we try most of the thing before the switch except outself. since the whole it department use linux and mozilla. and almost nothing is working with mozilla: there is no message in that folders.

• first of all the folder list can't be subscribed i.e. only the top level folder can be subscribed. can't subscribe to folder which has subfolders and mail inside. all folders with has subfolders shonw as an empty name folder under itself. and you can't select these folders in mozilla's subscribe window (i.e you are not able to check it even it is there).
• you can't send any messages!!! since mozilla can't find the Sent folder and can't move the mail after sending!!! even if you reconfigure mozilla to use that "Sent" folder as Sent folder.
• you can't see the mails in a folder which has subfolders i.e. it seem

• we store mails in ~/Maildir/. dovecot create a ~/Maildir/.INBOX and put the index files of the ~/Maildir/{cur,new,tmp} into that folder but for all other folders it keep the index files in that folder's directory. it's realy confusing.

this is _very_ anoying:-((( is there any dirty trick to use mozilla? when thses will be useable?

thanks.