Does a host/domain used solely for MX records pointing elsewhere need an A record?
I've got a domain on dns.he.net that only has an SOA record, NS records, and one MX (pointing to a totally different host). Does my domain need an A record? Currently nslookup fails since there is no IP associated with it. But mail seems to get to the MX host just fine.
Solution 1:
No, it does not need an A record. And if there is no IP address associated with it, it shouldn't have one.