Can not receive email with roundcube!

I am unable to receive emails with roundcube but I can send emails.

I also had the same problem.May I know why ??

I wanna know this too, I’ve tried some methods for serval times, but it still cant work.
I’ve tried to mail to my another e-mail acc. , and it tooks 14 days to receive it…even slower than posting in real world…really annoying