We collect data from various sources, some of which are mentioned below
After this data is email verified where we give them an option to opt for particular product/service used. It is a kind of survey template wherein they must tick – subscribe/unsubscribe the application types without mentioning anything.
In this process each contact is Tele-verified to make sure the list is in line with the Application used by these prospects. This process is called Tele-opt-in
The list is verified every quarter to make sure that each contact is up to date.