Postbox cannot find Profile folder after running "Speedupmymac"
After running the software "Speedupmymac", some customers see the error: "Profile Missing. Your Postbox profile cannot be loaded. It may be missing or inaccessible."
If this happens, most likely your cache folder has been locked by this program.
Within ~[your home folder] / Library / Caches / please make sure that the com.postbox-inc.postbox folder has permissions set to "everyone: read only". You can set these permissions by selecting the com.postbox-inc.postbox folder and then selecting "Get Info" from the File menu.