A user was getting messages such as below through to their blackberry From: Subject: RIM_bca28a80-e9c0-11d1-87fe-00600811c6a2 This message is used to carry data between the BlackBerry Handheld and an associated server. Please do not delete, move or respond to this message – it will be processed by the server. BEGINETP 122 ATkEsUUAAAAAIBAIMzAwNkIwNzAgH3JhbmR5LmhvbGxvd2F5QH NlY3VyaXR5Y29ycC5jb20A VxYMV1AFQ01JTUUDQICAgIAyAAAwOUI4QUI3OEIrRysxALmsvm zicVWw4bBVsf9JkycAGUWq p4T2XDKTUa0RuyXcH6w! ENDETP 1486277911 Resolution This problem is caused by the blackberry being setup on Redirector as well as Blackberry Internet Services /  Blackberry Enterprise Server ( You should only have one or the other! ). To leave the device using Blackberry Internet Services /  Blackberry Enterprise Server , follows there instructions There are 2 Solutions 1 ) Open up the Menu on the blackberry , Go to Options then to Advanced Options , then choose Service Books , Find and Delete the Desktop[CMIME] Service Book in the list by pressing the delete button ( While the Desktop[CMIME] Service Book is selected) on any device older then a storm , or if on a storm choose the menu button then delete ( While the Desktop[CMIME] Service Book is selected) 2) On your computer where you installed Blackberry Desktop Manager, Go to Control Pannel , Add and Remove Programs and remove the Blackberry Desktop Manager. Reinstall the program , and choose Blackberry Internet Service as the screen show shows.