[Q]Saving space with Sparrow for Mac

Since I have switched to MacBook Air 128GB SSD, I dont have enough space for my 2 email (work, personal) accounts to be synced to my laptop via sparrow. I dont want to go back to gmail webapp as I am in love with this.

Is there a way that I can remove some emails on sparrow that will delete the local copy and still keep it on the server. Does Archive button serve that purpose?