We have Exchange 2007 in a hybrid Office 365 environment. I'm trying to enable 'Online Archiving' for a user so that all the users email, 2 yrs and older, will be pushed to the 'In-Place Archive'. When I log into powershell (as admin) on Office 365 I run the command Start-ManagedFolderAssistant -identity user1 and I get the error message:
The call to Mailbox Assistants Service on Server: 'mO2PR20MB0089.namprd24.prod.outlook.com' failed. Error from RPC is -2147220992
This command used to work, but lately it hasn't. Suggestions?