postfix - Host found but no data record of requested type

tinha meu postfix rodando numa boa, mas de repente alguns dominios q mandava msgs normalmente começou a relatar o seguinte erro:
Oct 23 12:54:45 intra postfix/smtp[2086]: 0DAAACFA0: to=<[email protected]>, relay=none, delay=0, status=bounced (Name service error for name=peopleamericana.com.br type=A: Host found but no data record of requested type)
o dns is fine! veja o nslookup
> set type=mx
> peopleamericana.com.br
Server: w.x.y.z
Address: w.x.y.z#53

Non-authoritative answer:
peopleamericana.com.br mail exchanger = 10 home.peopleamericana.com.br.

Authoritative answers can be found from:
peopleamericana.com.br nameserver = ns-2.dglnet.com.br.
peopleamericana.com.br nameserver = ns-3.dglnet.com.br.
peopleamericana.com.br nameserver = ns-1.dglnet.com.br.
home.peopleamericana.com.br internet address = 200.204.63.205

por favor, alguém me acuda!!!!!!!!!