Opera's built in mail client is excellent. It's unfortunately baked into the browser, so while still pretty light (Opera's what 10-15 Mb) it's got a bit of irre

Opera's built in mail client is excellent. It's unfortunately baked into the browser, so while still pretty light (Opera's what 10-15 Mb) it's got a bit of irrelevent UI laying about in email mode. Still excellent though.