After a series of glitches causes a massive email backlog, Microsoft has posted a detailed explanation and apology for the problems with the cloud-based Microsoft Exchange subscription service.
As a result of the backlog, some messages were delayed as long as nine hours, while another separate issue with Outlook Web Access raised issues with Exchange ActiveSync devices.
Link – http://blogs.technet.com/b/msonline/archive/2011/05/13/update-on-bpos-standard-email-issues.aspx
