Email is now delivered from a different provider, so the first thing to check is that issues are not landing in your spam folder. If they are not in your spam folder, the best thing to do is to re-subscribe to make sure that we have your email.
If you are still having problems, get in touch with us (email@example.com), and we’ll be happy to help.
If you subscribed via RSS, your feed should be working as before because the old feed has been redirected to the new one. If your RSS reader doesn’t support redirects, the best thing to do is unsubscribe from that feed and re-subscribe to the new feed.