Anyone got a method for porting prior received gmails over to a yahoomail account? (Yeah, I know that's the Wrong Way. I can set a filter to handle sending emails which arrive from now on over to yahoomail, it's the ones already in the inbox I need to send over. And I can't "forward" them because I need to keep the headers intact--to be precise, the "From" and "To" lines. The only answer I can find online is "No", so if you know of a Tricky Solution, that'd be Keen.)
ED: No, it really is for a friend of mine. I like gmail.
ED2 Solution: download with Thunderbird. Redirect using Plugin extension to Yahoomail. Bah.