On 2015-08-27 Koko Wijatmoko wrote: > PTR can only map to 1 IP, one PTR for one IP is enough even using > multiple domain with postfix.
Technically you can have PTR records resolve to multiple names, just like you can have A records resolving to multiple IP Addresses. It's just best practice to restrict PTR records to a single name. Regards Ansgar Wiechers -- "Abstractions save us time working, but they don't save us time learning." --Joel Spolsky