Multiple Outboxes

I am looking for some assistance with a very odd issue.
I am running Version 8.0.1_GA_5438.FOSS.
When I log into the web client (or use ZimbraDesktop - it does it on both), I have hundreds of Outbox folders in my folder list. If I delete them, they just come back after a few days. I'm not sure what is causing this. Screenshot of the issue is attached. Has anyone seen this behavior before?

Thanks,
Jason

Attached Images

• outbox.PNG (15.4 KB)