Due to overzealous filtering on Microsoft’s side, some emails to Outlook and Hotmail addresses may not be delivered. If you’re affected, please use a different email address or try again later.
@Cyan
I'm having the issue on Virgin, and @ashlyii on BT, so it doesn't appear to be ISP specific (But UK-Specific??)
Either way - I ran a VPN and I was able to install files fine via Germany, so unsure of the cause.