Roundcube shows 100% though mailbox is almost empty

[anuel]

Hello

I have a problem that Roundcube shows 100%  though mailbox is almost empty. I have many email accounts for employees in my job and sometimes somebody informs me about this issue. Can someone explain me what may goes wrong?

PS. Sorry for my english - I'm from Poland .

[SKaero]

You'll need to ask your ISP what the quota is and why its full.