The LeicaRumors email subscription is no longer available. Google decided to kill the service (called Feedburner) I have been using for 15+ years. While I am looking for an alternative solution, you can follow the latest LeicaRumors blog posts on Facebook, Twitter, and RSS feed:
I assume at some point Google will also kill the Feedburner RSS feed, so it could be a good idea to switch now to the default https://leicarumors.com/feed/.
LeicaRumors can also be found on Instagram, YouTube, and Flickr but I am not very active on those channels: