sendmail mbox to 10.3 postfix/cyrus maildir ugly solution

Ok so I was stupid enough to do an upgrade without thinking of the consequences (I didn’t read up on 10.3). So now postfix/cyrus won’t serve
the old mbox files from my sendmail/uw-imap setup. I googled for conversion
tools but couldn’t figure out how they were supposed to work… didn’t really have time for it.
In the end I found a simple yet ugly solution to the problem. Since I only have 8 users on my server and I know them all personally, this was feasible.

I simply made my users download the old files from /var/mail/, rename them to [username].mbox instead of just [username], and put the file in a separate folder on their machines (they all use macs). Then simply open Mail.app – select import mailboxes – other – and select the folder they placed the .mbox file in – Mail.app does the rest. It won’t be on the server of course, but the important thing is that they got their mail back, and they can always upload it to the server if they REALLY want to (for webmail etc). That was my solution…