When I try to delete rules from a particular mailbox via Outlook, OWA, or Powershell the removal fails. The error I receive when trying to remove any of the rules from this mailbox via powershell is: There was an error saving the rules. + CategoryInfo : NotSpecified: (6:Int32) [Remove-InboxRule], QuotaExceededException + FullyQualifiedErrorId : 3713FEFD,Microsoft.Exchange.Management.RecipientTasks.RemoveInboxRule My next steps will be to try moving the mailbox and see if it will clear up any corruption if there is any.Bobby Pendino

additionally, if I try to disable some of the rules I get this error. This Inbox rule isn't supported by this version of Exchange. + CategoryInfo : InvalidOperation: (Domain.com/ZEC/Mig...561356508430337:InboxRuleIdParameter) [Disable-Inbo xRule], InvalidOperationException + FullyQualifiedErrorId : 7275D20B,Microsoft.Exchange.Management.RecipientTasks.DisableInboxRule Bobby Pendino

Could be the rules table is corrupt. Go into OWA for the user and check the user's rules, I've seen sometimes where the rules would look garbled after a migration. Also try increasing the rules quota for grins and see if it helps. Worst case you may just have to whack all the rules using outlook /cleanrules from outlook. James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com