Does anyone else remember when LI had the basically illegal idea to replace users mail servers with their own, so they could scrape email content/address inform

Does anyone else remember when LI had the basically illegal idea to replace users mail servers with their own, so they could scrape email content/address information? I remember hearing an interview about this on NPR, I think. They were quite pleased with themselves, too. Since that day I've always blocked them in the local firewall.