Feature Request: .pst/.ost email archive import.

Now that Microsoft O365 IMAP import is coming, how about adding import from .pst/.ost files?
Claude rates it as relatively straightforward; there are some MAPI-RFCxxxx conversion issues, but the file import framework is already there for .mbox.

I put up a gist: https://gist.github.com/YourEconProf/a45b1bc1b2377b65a22ef4341b90c450

Thanks!
Matt.