It seems like somehow yum cached data and the rpm database got out of sync with each other I guess.
Try running the next commands:
su -c 'yum clean all && rpm --rebuilddb'
su -c 'package-cleanup --problems'
Then run:
su -c 'yum erase zarafa*'
Edit #1:
Try running the next command:
# su -c 'yum --setopt=tsflags=noscripts remove zarafa*'
If that doesn’t work, try this:
# su -c 'rpm -e --noscripts zarafa*'