Microsoft doubles Exchange Online mailbox storage from 25GB to 50GB August 29, 2013 by admin Tweet Microsoft has announced that it is rolling out a chance for Office 365 business users that will see their Exchange Online mailbox storage limits increase from 25GB to 50GB at no extra cost. Read more… Neowin Related Posts:A new Microsoft feature could change how mailbox…Microsoft will add External Recipient Rate email…Microsoft will shut down Exchange Web Services in…Microsoft has an update on Exchange Online Basic…Microsoft is 'reimagining' archiving processes in…