Roundcube
Recently i've upgraded to PHP5.6. After that when i tried to login on my Roundcube Webmail i had this error message:
anthonypastor roundcube: <211g2b4d> IMAP Error: Login failed for contact from 81.153.32.136. Could not connect to ssl://localhost:993: Unknown reason in /home/sites/roundcube/www/program/lib/Roundcube/rcube_imap.php
After some Googling i read that PHP 5.6.X bring a new policy: SSL & TLS: Peer Certificates and Hostnames Verified by Default.