[ Thanks to Falko
Timme for this link. ]
“One of the challenges you may face when converting an office
from Microsoft Windows to Linux is that many people archive their
e-mail in PST files. There are PST tools available, but most of
them are commercial, since the PST file format is closed and
protected by Microsoft. There are several non-commercial methods to
achieve roughly the same goal, and in this tutorial we use IMAP
(more specifically, courier-imap) to convert all our e-mails from
PST to the Maildir format. The advantage of this approach is that
you also lay the foundation for a new mail system, with all your
old e-mails already imported the day you switch over…”