Hello all,
Desperately looking for a solution - this folder: /Users/JLG/Library/Group Containers/UBF8T346G9.Office/Outlook/Outlook 15 Profiles/Main Profile/Data/Message Sources, is currently sitting at 76GB of data.
I have plenty of emails (+/- 4000), but considering that all attachments to these messages is sitting at 2,4GB, the size of this Message Sources folder seems beyond ridiculous.
What can I do? Running Outlook 15.31 on my Macbook Air [El Capitan], through an Office 365 Subscription, which is connecting to our work email through IMAP as an Exchange Account [Preference/Internet Accounts].