Dave Malcolm has released an Evolution 1.5.7 package for Fedora Core

I've built packages of the latest unstable Evolution release (1.5.7) for Fedora. If you like living dangerously, you can get them here: http://people.redhat.com/dmalcolm/RPMS

This should be a yum repository, so you should be able to install them by editing your /etc/yum.conf appropriately to point to this URL and typing "yum install evolution" as root.

Works for me (I'm using it to send this email), though this is built from an UNSTABLE tarball, so expect it to crash, eat your mail, and do other Bad Things from time to time. You have been Warned!

Enjoy

Dave Malcolm