Sure it can, but it doesn't retain the Read/Unread status of the individual messages.
And in one case, I had a mail that had a bunch of stuff quoted from websites, with each one of the cited bits beginning with From at the start of the line... and that message got split up into a whole bunch of short messages. Probably because my particular mail system did not create a seperate file identifying the start and stop points of all the messages... This is particularly odd because Elm, the mailreader I use to read that mailbox on the original machine, reads that mail in as one long mail rather than several short ones...
And a third problem...
Well...
Would
you want to drag 500 individual messages over onto the IMAP server? Followed by 500 more messages from another MBox file?
Didn't think so...!
