hi,
tuna and its dependencies are now hosted on fedorahosted.org.
homepage is fedorahosted.org/tuna
mailing lists are:
tuna-devel(a)lists.fedorahosted.org for development discussion
tuna-commits(a)lists.fedorahosted.org for commit announcement (read only)
tuna-users(a)lists.fedorahosted.org for general discussion
all are accesible also via gmane
best regards
jiri kastner