It is really hard to fill over 8GB with email. That is what Gmail is offering and once they were saying that GMail is providing infinity plus storage. So couple of days ago I had came cross this message.
"You have run out of space for your Gmail account. You will not be able to send or receive any emails until you delete some items"
So I start deleting the emails and it was taking some times to delete the email and problem was not fixed until you empty the deleted emails as well.
