The hacker collective Syrian Electronic Army took credit for the hacks and posted fake messages warning that Microsoft is spying on users' e-mail accounts.
Microsoft late last month released updates to Exchange 2013 and Exchange 2010 Service Pack 3.
Microsoft on Thursday announced that Office 365 Message Encryption -- a service that will encrypt e-mails being sent to an outside source -- will go live early next year.
Microsoft announced a few details this week about its coming Service Pack 1 for Exchange Server 2013.
Microsoft today indicated that it plans to deliver Service Pack 1 "early next year" for its Office 2013-branded products.
A flexible search interface makes this software well-suited for e-discovery.
Microsoft's Outlook e-mail program has been sending regular messages into the junk bin, Microsoft noted this week.
Microsoft indicated last week that Windows Server 2012 R2 can't properly run any versions of Exchange yet.
Microsoft has increased the storage capacities for two of its cloud-based storage services.
Microsoft on Tuesday released multiple update rollups for its various Exchange Server products, but part of the release got pulled.
Microsoft's light monthly update will feature a majority of fixes for Windows.
Microsoft announced the release of Application Request Router 3.0 late last week.
Microsoft released a new build of Exchange 2013 Cumulative Update 2 on Monday.
Microsoft this week released Outlook Web Apps for Apple mobile devices.
Microsoft on Wednesday suggested that newer versions of Exchange and Exchange Online are now so secure that it's less necessary to check for unauthorized users.