Many large ecommerce sites encourage customers to share their purchases with friends and followers. While sharing via social networking may be okay, be careful if you help customers send mass emails to their friends about their purchases on your site.
Reuters wrote about a court case against Amazon in Germany, and reported, "The court said on Monday that sharing by e-mail without approval of the recipient was illegal. It is "unsolicited advertising and unreasonable harassment," the regional court in Hamm said, confirming the ruling of a lower court in Arnsberg."
There are strict rules about spam emails in the US too ... Read More