Question: outlook data file has reached the maximum size office 365?
Answer: The Outlook data file has a specific data limit for storing the data items. Like, Outlook 97 to 2002, a maximum size limit is 2 GB. Outlook 2003 and 2007 has a maximum 20 GB limit. In Outlook 2010, 2013, and 2016, a maximum limit has been set to 50 GB.