[Dovecot] Importing Microsoft PST into Dovecot Imap

Hi ,

I think the question has been asked before ... but I need to be adviced on what would be the best way to import microsoft PST's into Dovecot.. ?

What software can I use.. can a anyone make any recommendations? even if one has to spend some money on some commecial software.. but it has to work.. so Im looking for someone who has tried from experience as ive tried some freeware or trial software off the internet with little or no success.

Thanks and regards...

Ilo