Speaking on behalf of the Evolution team, we would like for the evolution-patches mailing list to be closed to new posts, but for the archives to remain available if possible.

These days we prefer tracking and discussing patches in Bugzilla rather than on a mailing list, and consequently the evolution-patches list has been relatively unused for several years.  Pretty much the only posts we get there now are from new contributors who aren't familiar with our development process, and they get pointed to Bugzilla.