Well, I created a new Roundcube 0.7 installation, and am still having the same
issues. I even tried sending an e-mail from Roundcube with an image to itself,
and Roundcube couldn't display it. I'm not sure what changed.
I did a search in the mime.types file, and found an entry for jpeg, but
Ahhh... I found something in the new install's error log that look's useful:
[26-Dec-2011 18:52:00] PHP Warning: finfo_open() [a
href='function.finfo-open'function.finfo-open/a]: Failed to load magic
database at '/usr/share/file/magic'. in
/var/www/rcm/program/include/rcube_shared.inc on
Do you use open_basedir?
If yes, you need to add some directories to the path.
Here my vhost config:
VirtualHost x.x.x.x:80
ServerName myroundcube.example.com
DocumentRoot /var/www/roundcube
CustomLog /var/log/apache2/roundcube_access_log common
php_admin_value