Can´t create folders into IMAP with ME PROFESSIONAL

[m0rpheu5@]

Hey guys, i saw many erros into this forum about create folders into IMAP server, but most of the parts they were using the Mail Enable Standard, but i´m using the Professional version, and when i try to send an email from Horde or create a folder from my email client or horde, i got a error, the error seems like a permission problem, i don´t know.