I would like to know how to download all folders from Outlook.com using IMAP4 in Messages. Thanks.
doogiePIM doesn't have the ability to download IMAP Folders (as yet). ;)
This is a feature, to support IMAP properly with "always online" folders and messages in a future version.
Keep watching this space :)
On a second issue, it is better to use POP3 when using Unicode characters for the current version of doogiePIM (v2). The messages will decode better.