Deleting emails on Cox email server clears emails on my Outlook account
I use Outlook 2013 to manage my emails from Cox.net. Yesterday, I could not receive any emails, and found out that my 2 GB email capacity was full. First of all, how to set up the server to delete the emails 10 days after they are downloaded to my Outlook account? Then, I manually deleted the emails on the server, however, today I found that all my emails in my Outlook account was also cleared. Why deleting emails on the server to make up space would clear local emails on my Outlook account on my computer? Is there a way to recover those deleted emails? I'm desperate as all my emails are gone. Please help ASAP!