How to reduce size of ‘message sources’ folder

22. October 2012 · Write a comment · Categories: Outlook for Mac · Tags: , , , , , , , , ,
I've seen some related posts but none seem to directly address why this happening or how to fix. In my Outlook for Mac 2011, my 'message sources' folder is a whopping 65 gig. It's killing my MAC Air. My email inbox only has 30 messages in it. I have dragged emails to an offline folder but, even then, the file wouldn't be more than a gigabyte.

So, can anyone please advise how to reduce this folder size?

Many thanks

2011 1.7 GHz i5 Macbook Air, 4 GB memory, OSX 10.8.2, MS Office for Mac ver 14.2.4