I have a mail server currently running qmail/vpopmail and I'll be moving to a Plesk based server. If I understand things correctly Plesk uses qmail, but not vpopmail. Currently mail is stored like so on my server
/home/vpopmail/domains/example.com/username/Maildir/new/

Can anyone tell me what the directories are like on Plesk?

Anyone moved from vpopmail to Plesk?