Approaching email limit

Approaching email limit

Hi,

I have received two emails telling me that I am approaching my 5GB mail limit.

When I log in, I see that i have used 67%, however, I seem to not be able to reduce this figure.

My inbox is 11%, sent mail 10%, etc, etc, added up they don't come to 67%....

I've deleted loads of emails, still 67%, deleted all archived mail, still 67%, what am I missing? And what do I need to do to reduce the size of my mailbox.