Presumably you have all your POP accounts sharing one set of folders, which I seem to recall was the default for 2007? It has since changed.

For separate files you need to create new databases for each account. You can do that from Account Settings > E-mail > Select the account from the list > Change Folder > New Outlook Data File - give it a name that reflects the content.

Repeat for each relevant address.

If you setup your accounts as IMAP separate folders are created automatically.

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Graham Mayor - MS MVP (Word) (2002-2019)
Visit my web site for more programming tips and ready made processes www.gmayor.com

Tks a lot, I did s you said.
Now I have (as attached) 2 folders with the same name 'personal folder'
1. How can I change the name ?
2. How can I arrange it one below the other ? the archive should be last ...
Tks !

Attached Images

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