[imp] sent-mail folder

Hello together, I am using Plesk 9 with Horde webmail and I have the problem, that Horde everytime an e-mail is sent, which was saved, a new folder ?sent-mail? is created, instead of saving to the folder ?Sent?. I found a switch in /imp/prefs.conf where you can set the folder name, but then

[imp] SOLVED: unable to save sent message -- NAMESPACE problem

Hi, After a long overdue upgrade from IMP-4.2 to IMP-4.3.9, I found that creating Sent/Drafts/Trash/Spam folders via the Personal Info and Server and Folder Information Options would fail with permission denied messages from Cyrus. I confirmed that Cyrus is advertising my namespace correctly: