To automate the answer of @Jordan S. Jones at WIN/DOS command-line,
Put this in a batch file named: getmns.bat (get mail name server):
@echo off
if @%1==@ goto USAGE
echo set type=MX>mnscmd.txt
echo %1>>mnscmd.txt
echo exit>>mnscmd.txt
nslookup<mnscmd.txt>mnsresult.txt
type mnsresult.txt
del mnsresult.txt
goto END
:USAGE
echo usage:
echo %0 domainname.ext
:END
echo.
For example:
getmns google.com
output:
google.com MX preference = 20, mail exchanger = alt1.aspmx.l.google.com
google.com MX preference = 10, mail exchanger = aspmx.l.google.com
google.com MX preference = 50, mail exchanger = alt4.aspmx.l.google.com
google.com MX preference = 40, mail exchanger = alt3.aspmx.l.google.com
google.com MX preference = 30, mail exchanger = alt2.aspmx.l.google.com
alt4.aspmx.l.google.com internet address = 74.125.25.27
alt3.aspmx.l.google.com internet address = 173.194.72.27
aspmx.l.google.com internet address = 173.194.65.27
alt1.aspmx.l.google.com internet address = 74.125.200.27
alt2.aspmx.l.google.com internet address = 64.233.187.27
For example to pipe the result again into a file do:
getmns google.com > google.mns.txt
:-D