Let your users input email addresses into your refer-a-friend form directly from their address books without leaving your website.
Embed your users’ address books to let them easily create large recipient lists for your e-cards, e-vites and fundraising campaigns.
Ingest address books from dozens of webmail providers around the world to power your find-a-friend feature or contact database population process.
Specifies the message to display to the user in an alert box when they attempt to select too many contacts. Ignore it to suppress the message. Has not effect unless used with selectionLimit.