Remove an user for an Exchange Database

Hello all,

I hope that you are well !

I have a simple question for you...we want to remove rights for an user in our Exchange 2010 DB.

So we did that command to gave the user full access:

Get-MailboxDatabase -identity "DB" |Add-ADPermission -user janedoe-AccessRights GenericAll

So the question is how to remove janedoe rights with PowerShell...?

Best regards to all of you

Stephane