Thank you very much. Finally something that worked :)
That option sure is well hidden, though. Also there should be an alert or something: "You have to change the customization bla bla bla". Anyway thanks a lot.
I'm trying to increase the mailbox size for an account but I am unable to do so. I tried changing the subscrition / service plan and even creating a new one but no matter what I do the mailbox size always says "Default size 4GB" and won't let me go above that limit. The message "The specified...