So, I am trying to get a Skymiles account for each of my kids, and the website won't allow me to enter my own e-mail address in the contact info because it is already linked to my Skymiles account. (Kids don't have their own e-mail account yet, and I don't want them to be receiving marketing e-mails from Delta anyway). So, I tried entering a Gmail alias that would still go to my inbox, i.e. John+Mary@Gmail.com will still go to John@Gmail.com, and it was denied because of the '+' character! E-mailed Skymiles/Delta.com support and got a completely useless answer, So, any other ideas or workarounds? If someone has a 2 y.o., do you just get them a dummy e-mail address somewhere? I'm really wanting to sign them up for the new member bonuses since we'll have several upcoming flights.