in reply to Howto Post Email via Hotmail

You might want to have a look at HTTPMail. Here is a snippet from their site:

HTTPMail is a project to document the HTTPMail protocol used for Hotmail. It also aims to allow other mail clients to use Hotmail.

Also there is getwmail and Gotmail (both are coded in Perl).

I don't know though if posting is supported with those tools, but fetching works fairly well.

Good luck!