Nobody likes a snitch, especially a spammy one that results in more messages in your inbox. With Exchange 2007 if you forward – manually or with a rule – a calendar appointment, Exchange will
tattle send the meeting organizer a notification.
Your meeting was forwarded
XXXXXXX has forwarded your meeting request to additional recipients.
Meeting Evaluate PostPath
Meeting Time Friday, July 31, 2009 2:00 PM-3:00 PM.
Recipients YYYYYYYY ZZZZZZZZ
Use the following PowerShell commands on your Exchange server to disable meeting forward notifications.
Disable External Meeting Forward Notifications
Set-RemoteDomain -MeetingForwardNotificationEnabled $false
Disable Internal Meeting Forward Notifications for a Single User
Set-MailboxCalendarSettings -Identity firstname.lastname@example.org -RemoveForwardedMeetingNotifications $true
Disable Internal Meeting Forward Notifications for All Mailboxes
Note that this only affects current users, new users will still have the default forwarding enabled.
Get-Mailbox -ResultSize unlimited | Set-MailboxCalendarSettings -RemoveForwardedMeetingNotifications $true