Also not a lawyer (and in the UK) - I tried to dig out a loophole for example "Your friend technically sent the message to you not us!" sort of thing But no, a

Also not a lawyer (and in the UK) - I tried to dig out a loophole for example "Your friend technically sent the message to you not us!" sort of thing But no, as a layman I can't see how this is getting by the CAN-SPAM act. It doesn't give you the option to not send it and sends it anonymously. From the recipient point of view it's just a random unsolicited email. I guess it's one of those it's easier to ask forgiveness than permission things. My guess is the moment someone with potential legal clout challenges this the invites will be changed to a "Do you want to invite your friend yes/no" system