21cn的退信，请赐教！

hurrylai

550 (ID:10.27.2.3-1282013000-89130) no MX or A record for this domain, Inbound SMTP server 233; Time: 20100817,10:43:20


在服务器上NSLOOKUP
> set q=mx
> 21cn.com
Server:  UnKnown
Address:  210.21.112.132
Non-authoritative answer:
21cn.com        MX preference = 10, mail exchanger = mta.21cn.com
21cn.com        nameserver = cdnns.21cn.com
mta.21cn.com    internet address = 59.36.102.50
mta.21cn.com    internet address = 59.36.102.51
cdnns.21cn.com  internet address = 218.107.61.49
cdnns.21cn.com  internet address = 58.211.81.95
cdnns.21cn.com  internet address = 59.36.102.160

是我服务器DNS吗？

rayer

看来是你发信的域名没有解析闹的