To follow up, I found the solution. Outlook does not like cyrus response to XLIST "" "".
Cyrus does: C: . XLIST "" "" S: . OK Success What unlocks outlook capability to create top level folders : C: . XLIST "" "" S: * XLIST (\Noselect) "/" "/" S: . OK Success We fixed the problem with an override of the XLIST command on in our imap proxy. Regards, Thomas Cataldo. On Wed, Jul 2, 2014 at 4:15 PM, Thomas Cataldo <tcata...@gmail.com> wrote: > Hi, > > I have a "simple" problem. When using altnamespace: yes, outlook 2013 > lets create folders in your imap account, they look like real imap > folders but they are _local_ folders. Outlook never sends the CREATE > command. Worse than that, if I delete the folder, I now have > Trash/theFolder, and outlooks issues SELECT "Trash/theFolder", which > fails as the folder never was on server. > > Switching to altnamespace: no, everything works and the CREATE command are > sent. > > Tried on imap.gmail.com and on exchange2010 imap and folders are > created correctly on both. > > Any idea ? > > Regards, > Thomas Cataldo.