Hi,
The upcoming Vcs 0.5 (from http://www.lrde.epita.fr/~pouill_n/vcs/) seems to send malformed e-mails. I've come to this conclusion after having noticed that
1. there were duplicate headers in e-mails (`From' and `To'). If you have subscribed to olena-patches, you can see these cloned fields (unfortunately they aren't visible in Mailman's archives) ;
2. none of the patches I've committed with Vcs 0.5 were visible in the lrde.olena.patches group, although they have reached the olena-patches mailing list. This is perhaps because of the sync mechanism between the mailing list and the newsgroup, which prevented this maybe-malformed e-mail from going into the group.
I'll temporarily switch back to Vcs 0.4.