plus vsnl ids exists because long back ppl just had that id and its been printed all over on visiting cards and ppl are still being contacted using vsnl ids.
how much space would they have on the vsnl servers?
think about a scenario where vsnl collaborates with
google. and all of these people get emails on reliable google servers with 2 gigs of storage!
and pop/smtp is already there. and excellent spam filters... and even better web mail interface.
from what i know people have mantraonline based email ids. not sure what airtel broadband gives.... but if all the existing email users at airtel are upgraded to use google based services, i am pretty sure they would become more reliable...
personal opinion of course. i hate the amount of spam my cousin gets at his mail id which is hosted on my server. i plan to move his email hosting on google servers soon... for the sole purpose of making his email checking process a bit simpler.
about privacy... i had trust google to maintain my privacy more compared to airtel people.
i am not sure why u believe that airtel collaborating with google would result in spam for airtel customers...
and i am sure some of the airtel broadband users ARE using their provided email ids.
i have even seen people here on the forum asking on instructions to get the webmail service bsnl provide with their broadband service.