Go to the Mail preferences/accounts and highlight your POP3 account.
In the right hand pane, click the advanced tab.
Put a check mark in the remove copy from server after retrieving message.
Should work for you
P
I'm new to Mac's and have a shiney new PowerBook G4 which I've just configured, including the setting up of my mail accounts via my ISP's server. Everything works fine...I can download new mail, send, reply and forward. However, when logging onto my old windows pc this evening and opening up Outlook, all the messages I had successfully downloaded and put into newly created mail boxes on my Mac downloaded again via my pc. Consequently, I have to presume that for some reason my Mac is receiving mail OK but not deleting it off my ISP's server. How can I deal with this? I can't download my mail twice every time, once on my mac and once on my pc ! I must be misunderstanding something.....any ideas please !!

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