I’ve been looking for a way to migrate my old e mail by to Gmail for a while now. The two options to term have been:

1. Redirecting Mail
2. Mark Lyon’s GMail Loader

The problem is that you lose some of the sender/date input with these methods. There is now a simple solution using Gmail’s IMAP support. Using Mail under 10.5, I set up a new detail to

mirror Gmail using these intructions. With IMAP configured, old mail can be simply dragged to the Gmail Inbox or Sent Mail in order to import. I not only synced my recent mail, but imported old archived mailboxes back into mail for syncing.

Now I can use one explanation to keep all my newsletter accessible both locally and remotely.

Original post by Michael Rose