Outlook Mac stores temporary files such as e-mail signatures, opened attachments (images, documents, PDF files, etc) and other e-mail content in the following location:
~/Library/Caches/TemporaryItems/Outlook Temp
You can locate Outlook Temp:
- Open Finder
- Go to the “GO” drop down menu and select “Go to Folder…”
- Enter ~/Library/Caches/TemporaryItems/Outlook Temp and click go
OR, alternatively
- Open Finder
- Go to the “GO” drop down menu and hold down the option (alt) key.
- The “Library” option will appear.
- Click on “Library” and then you will find “Caches” and then “TemporaryItems” and “Outlook Temp”