Sending an email to a public folder takes 14-21 mins to appear in the folder. The logs show it is being delivered within a minute at least. To rule out being a workstation or client issue I get the same result using our webmail client. This recently started within the last few days and our servers are setup to update from a WSUS and we have not pushed out any updates in a month or so. Exchange 2010 version 14.01.0438.000 any ideas?