Welcome, @levi1225 . I have run my own mail server for nearly 30 years, first on Sendmail, now on Postfix. I enjoy the challenge of keeping spam off my server (I currently get 0 spam, and usually fewer than 10 spam attempts per day), and I also have my server configured to allow me to send from my gmail and iCloud addresses, as well as my personal address, all from my server.
I have also run my own web server for just as long. At first I ran Apache, then Apache with vhosts, but this point, the web server hosts only Docker images (one per virtual host), using Traefik for routing.
Welcome @levi1225 Great to have you here. Sounds like you’ve made serious progress with email delivery (Yahoo is no joke!). @unixdude has had great success with this. I could be wrong, but I think starting a new mail server and gaining good IP/senders reputation has become more challenging in the past decade. But understandably so because of the exponential growth of SPAM and malware.
We would love to follow your journey, might encourage others like myself to give it a go. Free to open a new thread in Linux Support where we can help, learn and follow progress.
Looking forward to hearing more about your setup and your journey toward offering managed alternatives.