I just met an online friend in Japan, she can e-mail me at my address here in the USA, but when I try to e-mail her back or reply, my e-mail will not go through, it keeps coming back. The end of her yahoo address is @yahoo.co.jp I tried to change things around, I've used, @yahoo.co, @yahoo.com, @yahoo.com.jp still no luck. Does anyone know why my mail won't go through to her address? Thank you......

What email client are you using?

I found one example of this same problem that was cleared by purging browser history. With IE, you can delete browser history quickly by pressing Ctrl Shift Del, Uncheck Preserve Favorites website data, then ensure at least the next three options are checked and click on Delete. Then restart IE and try again. But if you are not using a web based client, this won't help.