I ended up ordering a gen10 plus for $660 off Amazon. The gen10 for $330 seems to have problems actually ordering it. Seller's lose.

I really don't see value in using ClearOS for this application. I don't have a clear information on its email service compared to iRedMail and if it is still CentOS7 based, well I will go with AlmaLinux 9...

Good to see you all again, but my old ClearOS6 server is off, and I will probably wipe the drive then toss it into my spares bin. then hardware is a 10+-yearold Lenovo SFF, heading to recycling.