Version: 1.12.2 (using KDE 4.3.2) Installed from: Ubuntu Packages Currently it is not possible to subscribe to subfolders only without synchronizing the parent folder. For Kolab2 I have subfolders in INCOMING. Since Kolab2 requires an DIMAP account but I don't like to cache the whole IMAP-account holding more than 1G I setup 2 accounts in kmail, one IMAP and one DIMAP pointing to the same server. It is not possible to subscribe to INCOMING/Contacts only without synchronizing INCOMING where most of the mails are stored in.
Thank you for your feature request. Kmail1 is currently unmaintained so we are closing all wishes. Please feel free to reopen a feature request for Kmail2 if it has not already been implemented. Thank you for your understanding.
Instead of creating a new feature request, please confirm here if the wishlist is still valid for kmail2.