RRsetDeleteRR must set TTL to 0 otherwise BIND rejects with a "FORMERR" error when attempting to delete.
RRsetDeleteRR must set TTL to 0 otherwise BIND rejects with a "FORMERR" error when attempting to delete.

The file named/update.c.html in the BIND project tests the TTL immediately after seeing that "update_class == dns_rdataclass_none".  See also http://www.fiveanddime.net/bind-9/bind-9.3.1/bin/named/update.c.html and search for the above conditional.
jmhodges/dns,Psiphon-Inc/dns,tempbottle/dns,flebarbe/dns,letsencrypt/dns,ezoic/dns,benbearchen/dns,FiloSottile/dns,janstk/dns,skynet/dns,jdef/dns,Git-Host/dns,josephyzhou/dns,miekg/dns,AlexCheong/dns,cloudflare/dns,tsenart/dns,tonnerre/golang-dns,ym/go-dns,rolandshoemaker/dns,bboreham/dns,skyportsystems/dns,modulexcite/dns,hugozhu/dns,bragr/dns,curtiszimmerman/dns,michaelharo/dns,ErikDubbelboer/dns,asergeyev/dns