I have some room mailboxes on my Exchange 2007 server and for some reason one of those mailboxes stopped processing meetings.None of the settings have been changed.Any idea?

Hi, Run below command and check for the value of AllowConflicts setting. it should be $True. Get-MailboxCalendarSettings "ResourceMailboxName" | FL Reference: Get-MailboxCalendarSettings http://technet.microsoft.com/en-us/library/aa998229(EXCHG.80).aspx If value shows $False then set it to true with below command. Set-MailboxCalendarSettings "ResourceMailboxName" AllowConflicts $True