I just found part of hotmail email code on a website called cpan. it’s an interesting site since it also has part of msn messengers code too. https://metacpan.org/pod/WWW::Hotmail this is the link to the msn hotmail email code i found on cpan using their search site.
What part exactly?
I am not sure but i’ve seen it there.
A good thing to find would be the “Messenger GET MAIL” command, that’s maybe a thing you found.