Forum fixed & updated

Since the beginning, I used Google for Cultivariable email. This caused some problems that were difficult to solve. I had a web of services involving AWS, Godaddy, and Google and it was difficult to get them to cooperate on some things, leading to email delivery problems. I finally found the time to take over all of these services. I now run DNS and email myself, and this made it possible to finally solve these problems. Forum emails should now be reliably delivered to major email providers like gmail, which will make it much easier to join the forum. So, if you have had problems joining before, please give it another try! Now that I have fixed the technical problems, I will start using the forum more regularly.