Type: array

You may not want to display the entire list of our supported sources. So instead you can specify only the sources you want your users to see and the order you would like them to appear in. For example:

  sources: ['gmail', 'yahoo', 'windowslive']

Specifies the sources to display on the contact sources page. Available sources are: gmail, yahoo, windowslive, csv, linkedin, aol, icloud, outlook, addressbook, plaxo, mail_ru, uol, bol, terra, rediff, mail126, mail163, mail_yeah_net, gmx, qip_ru, sapo, mailcom, yandex_ru