Hello, I tend to remember that RIPE had a strict policy about delegated address space reverse DNS: adresses must have a valid reverse and delegated (sub) blocks must be registered in RIPE db. I wanted to refer to the document mentioning these requirements but I was not able to find them. Navigating on www.ripe.net helped nothing: reverse dns part shows the procedure, refers to a page "about ripe policies" which contains only links to RFC and other RIPE documents, which in turn are about the procedure and not any policy. Maybe there are any hidden one mentioning that "you should have reverse on your addresses" but I kindly ask your help where to look for it. If this requirement would have been dropped then I'd be extremely happy to know about it. Thank you, Peter ps: Reason is a(nother) big provider with many /19 and with no reverse or RIPE entry (other than the /19) whatsoever, and occasional spam from these reverseless and nameless blocks.