import getpass, poplib

Mailbox = poplib.POP3_SSL('mailetu.univ-orleans.fr', '995')
Mailbox.user('O123456')
passwd = getpass.getpass('Password:')
Mailbox.pass_(passwd)
numMessages = len(Mailbox.list()[1])
for i in range(numMessages):
    for msg in Mailbox.retr(i+1)[1]:
        print(msg)
Mailbox.quit()