So I think it has to do with the UnRAID version I got. I looked thru the post, and other people had the same issue, and the creator stated he doesnt email from the system.
Therefore, I am going to build a Ubunutu VM. I tried once and failed, so will try again. I did notice v5.5 requires PHP 8, while the docs show 7.4 (self-host-installation) So do I need to install both, or just PHP8.1