ARCserve Error E8571 – (The request is denied by the agent. The requested agent is not installed)

KB ID 0000433

Problem

Seen when trying to perform a “Document Level” backup of Exchange 2010.

Error E8571 The request is denied by the agent. The requested agent is not installed

The crux of the problem is the Exchange server needs the Microsoft Exchange Server MAPI Client and Collaboration Data Objects installing upon it, and they HAVE TO BE INSTALLED BEFORE the backup agent.

1. On the Exchange server, Start > appwiz.cpl {enter}

2. Locate and un-install CA ARCServe Backup.

4. Reinstall the “Backup Agent for Exchange” and your backups should now run without the error above.