A few days ago, an update for evolution caused mail-notification to stop working: (evolution:3835): e-utils-WARNING **: can't load plugin '/usr/lib/evolution/2.24/plugins/liborg-jylefort-mail-notification.so': libcamel-provider-1.2.so.12: kan gedeeld objectbestand niet openen: Bestand of map bestaat niet (This is a dutch message mentioning 'no such file or directory') A rebuild should be sufficient to solve this problem
Rebuilt, see http://kojipkgs.fedoraproject.org/packages/mail-notification/5.4/2.fc10/