Somewhere in chapter 5 of ripe-159, a paragraph regarding AUP for mail spam issues, or some operational instructions (RIPE registry of good mail-relayers ?) to be followed for the registries, and applied by the LIRs to their customers.
I just got an email from Mike Norris with the agenda of the LIR WG. They have a slot to discuss I/O with other working groups, and this can be the place to suggest to this WG the evaluation of the impact of such recommendations in the Internet Registry procedures.
The LIR WG meets ahead of the Anti-Spam WG. However, it could be made aware of this discussion and might make suggestions to the Anti-Spam WG, which in turn might recommend changes to ripe-159. Such recommendations could be considered at report stage, if not ahead of it by the two chairs concerned. Mike