Not sure if this is the right section, but here goes. For a while now I've wanted to upgrade to an SSD, and now seems the perfect time with Yosemite on the horizon so I can complete a fresh install. However I have a lot of messages in mail, I want to keep these but don't want to restore them to my new build as I rarely need the information contained. Is there any way to export the messages so I can still search through and access them on an external HDD? So I don't have to import them all onto my nice shiny new SSD.