I can’t claim to have figured this out by my self…
EDIT: For whoever had the problem with blue video output – You don’t have to deactivate hardware acceleration. When using Nvidia drivers and VDPAU you should locate libflashplayer.so and run the following command in its directory:
sudo perl -pi.bak -e 's/libvdpau/lixvdpau/g' libflashplayer.so
Mine were located in: /usr/lib/flashplugin-nonfree/
On my Debian box the following were used:
/etc/ssl/certs/dovecot.pem and /etc/ssl/certs/dovecot.pem were the default locations check your /etc/dovecot/dovecot.conf before running.
openssl req -new -x509 -nodes -out /etc/ssl/certs/dovecot.pem -keyout /etc/ssl/private/dovecot.pem -days 3650
I got tired of renewing the certificate so I issued one that lasts 10 years.
(apparently it does not take that much to make me tired)