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When you ask a question, don't limit yourself to the subject. It can be
truncated. Moreover, you get to tell us deetails like account type, Outlook
version, and other valuable data. In this case, the subject was enough for
me to be failrly sure I knew what you were asking.
SBC contracts with Yahoo for their email. Yahoo uses POP access. POP
access can't handle anything by the Inbox on the server, so you're going to
have to juggle a little. First, create a new folder in Outlook called, say,
"Inbox Copy" and move, not copy, everything in your existing Inbox to that
folder. Then, log into your SBC mail account via your web browser. Create
a new folder called, say, "Inbox Copy" and move, not copy, everything from
your existing Inbox on the server to this new folder. Then, for each of
your mail folders on the server, copy its contents to the server's Inbox.
Perform a Send/Receive in Outlook. This will cause Outlook to download all
the messages you just put in the server Inbox. In Outlook, create a folder
whose name matches the name of the folder on the server and move the
contents of your Outlook Inbox to that folder. After doing this for all
server folders, move the contents of the server-side "Inbox Copy" back to
the server-side Inbox, if you haven't downloaded these messages already,
before going through the process I've described.