TOPIC: Registrants receiving email, but admin is not...

I must have done something to cause this but can't figure it out. My registrants receive the email from the system, but then I receive nothing. What am I missing?

I'd say to check the config setting on the emails tab "Send Admin Email FROM Registrant". If this is set to YES, switch it to NO. Some mail servers do not like that option and are more strict as to who an email can be sent FROM on their server. Maybe something changed on your server side of things... but that's a very likely source of the problem.

Also, if your admin email address uses the same domain as the website, that can often be a problem too with some mail servers. We've seen that a lot. It just requires different mail configuration settings in Joomla. You can ask your host about that if you find that is the issue. To test, you could of course change the admin email to some other address like a gmail account to see if that makes a difference.