The bug was caused by an Apple update.
There are two ways to resolve this issue.
Microsoft has released an apple script download that you can run to resolve, or we can enter several commands via terminal to fix.
- Close Outlook 2013 completely (Outlook > Quit)
- Open a terminal window
- Enter the following commands
- sudo killall "Office365ServiceV2"
- enter the administrative password. If you receive a message saying no matching processes were found, you can continue to the next step.
- cd ~/Library/Group\ Containers/UBF8T346G9.Office
- ls -a | perl -n -e 'print if m/^[e|c]\w/' | xargs rm
- Open Outlook, click send / receive to go through the re-activation process.
Microsoft Apple Script
Microsoft have released the below Apple script to automate the above. Simply download and run using Apple Script.