Why do my emails keep disappearing?

I set up my outlook to receive one of my yahoo accounts. my emails keep disappearing from my in box.?

• Every time my outlook checks the incomming mail from another of my yahoo accounts, the mail messages dissapear from my org yahoo acct. Anybody experienced this? Thanks....Vikki

• Answer:

  Yes, what is happening is that when mail comes into Outlook from the Yahoo server, the e-mail is deleted from Yahoo as you really do not need the e-mail in both places. You can only use Outlook on your own computer. If you are on the road, you would check your e-mail in your Yahoo account. In Outlook Express, and I assume it would be the same on Outlook also, Under Tools - Accounts --Properties--Advanced tab, there is a box which says Leave message on server. If you wish to have your mail both in your yahoo account as well as in Outlook, check that box.