We started to work on the first web service we would like to have casper use : MAILS.
We choose to use the C++ library Vmime which support many protocols such as pop or imap. It also has functions to parse the retrieved mails and get only the parts interesting to us.
We wrote a program able to connect in POP3 to the pop3.free.fr mail server (which allows unsecured connections). Giving a login/password pair this program is able to print a mail (the first of the list for now).
We are now working on organizing and selecting the right data from the mail server.