How to Use Nslookup to Verify MX record configuration

C:\nslookup
Default Server: contoso.com
Address: 10.0.0.112
> set q=MX
> microsoft.com --> domain to be searched
Server: contoso.com
Address: 10.0.0.112
Non-authoritative answer:
microsoft.com MX preference = 10, mail exchanger = mail.messaging.microsoft.com
mail.messaging.microsoft.com internet address = 216.32.180.22

http://technet.microsoft.com/en-us/library/aa998082(EXCHG.65).aspx
http://www.zoneedit.com/doc/nslookup.html