search for: _courier_imap

hi guys, I hope it's common trouble, but I'm not able to find a solution: - i'am using courier imap and trying to migrate to the dovecot - on courier I have all folders as subfolder of Inbox - i.e. Inbox.Sent but on dovecot the folder Sent is not subfolder of Inbox, but its on the same level. Please is there some possibility to have the subfolders the same behaviour as in courier?

...prefix = INBOX." ad infinitum for the inbox namespace, I'm looking for ways to move on to "prefix =" for new mail accounts, and grandfather the existing ones. Previously running Courier-IMAP, now Dovecot, I looked at https://wiki.dovecot.org/Namespaces#Backwards_Compatibility:_Courier_IMAP and decided it's too risky to go down that path and use namespace compat, with so many IMAP clients out there the scope of testing is huge and the outcome is uncertain and not worth it. After reading https://wiki.dovecot.org/Namespaces#Per-user_Namespace_Location_From_SQL I thought I might...