这是否表明NIC的技术能力不足？
请评论如果我错了.

(至少Postfix看起来无法发送到postmaster @ ai,因为它会自动附加localdomain.)

例如,用“dig mx ai”自己测试一下.

.AI   =>   mail.offshore.AI.
.AS   =>   dca.relay.gdns.net.
.BJ   =>   mail6.domain-mail.com.
.CF   =>   mail.intnet.CF.
.DJ   =>   smtp.intnet.DJ.
   =>   relais2.intnet.DJ.
.DM   =>   mail.nic.DM.
.GP   =>   ns1.nic.GP.
   =>   ns34259.ovh.net.
   =>   manta.outremer.com.
.HR   =>   alpha.carnet.HR.
.IO   =>   mailer2.IO.
.KH   =>   ns1.dns.net.KH.
.KM   =>   mail1.comorestelecom.KM.
.MH   =>   imap.pwke.twtelecom.net.
.MQ   =>   mx1-mq.mediaserv.net.
.NE   =>   bow.rain.fr.
   =>   bow.intnet.NE.
.PA   =>   ns.PA.
.TD   =>   mail.intnet.TD.
.TT   =>   66-27-54-142.san.rr.com.
   =>   66-27-54-138.san.rr.com.
.UA   =>   mr.kolo.net.
.VA   =>   proxy2.urbe.it.
   =>   john.vatican.VA.
   =>   paul.vatican.VA.
   =>   lists.vatican.VA.
.WS   =>   mail.worldsite.WS.
.TD   =>   mail.intnet.TD
.YE   =>   mail.yemen.net.YE.