Hi there,
A while back you guys helped me a ton to develop installation scripts for hmailserver. I have made them open source as well as making an AMI available that has Hmailserver installed on windows 2019 server. It also automatically makes a letsencrypt cert.
Here is the github address.
https://github.com/montgomery-auber/hmailscripts
The AMI ID is ami-036f67800f74b8065 in US-east-1 . When you launch the AMI choose launch in the EC2 console and search for public AMIs. I suggest using at least a large instance, XL is better.
Here are the instructions from our website stating how to run the init scripts.
https://floatingcloud.io/mail-server-wi ... ail-needs/