For Example: firstname.lastname@example.org
This is applicable to all service providers and do not change mail extension “@nma.vodafone.in” this is common for any mobile.
Even if you are sending to Vodafone Airtel Idea Aircel BSNL Tata Relaince or any other network it will work
and to get sms delivered it will take about 5-7 minutes.
However, I guess this nma.vodafone.in will stores your mobile number. So it is up to you to use this service send email to vodafone india as sms.