可否再詳細說明加MX Record的過程及設定的項目
這樣比較好幫您找出問題

就在DNS管理員主控台利用滑鼠右鍵就新增一筆MX記錄啊,而MX主機早就有登記A記錄了
以下是Nslookup執行的結果
C:\>nslookup
Default Server: cndc.nextbio.com
Address: 192.168.4.3

> set q=mx
> nextbio.com
Server: cndc.nextbio.com
Address: 192.168.4.3

nextbio.com
primary name server = cndc.nextbio.com
responsible mail addr = michael
serial = 400
refresh = 900 (15 mins)
retry = 600 (10 mins)
expire = 86400 (1 day)
default TTL = 3600 (1 hour)
> set q=any
> nextbio.com
Server: cndc.nextbio.com
Address: 192.168.4.3

nextbio.com internet address = 192.168.4.3
nextbio.com internet address = 192.168.0.2
nextbio.com nameserver = cndc.nextbio.com
nextbio.com nameserver = tpdc.nextbio.com
nextbio.com
primary name server = cndc.nextbio.com
responsible mail addr = michael
serial = 400
refresh = 900 (15 mins)
retry = 600 (10 mins)
expire = 86400 (1 day)
default TTL = 3600 (1 hour)
cndc.nextbio.com internet address = 192.168.4.3
tpdc.nextbio.com internet address = 192.168.0.2
> set q=all
> nextbio.com
Server: cndc.nextbio.com
Address: 192.168.4.3

nextbio.com internet address = 192.168.4.3
nextbio.com internet address = 192.168.0.2
nextbio.com nameserver = cndc.nextbio.com
nextbio.com nameserver = tpdc.nextbio.com
nextbio.com
primary name server = cndc.nextbio.com
responsible mail addr = michael
serial = 400
refresh = 900 (15 mins)
retry = 600 (10 mins)
expire = 86400 (1 day)
default TTL = 3600 (1 hour)
cndc.nextbio.com internet address = 192.168.4.3
tpdc.nextbio.com internet address = 192.168.0.2
>