If you use Apple devices and have an email account with Accomazzi.net, enter your email address here.
You will be able to download a configuration profile which, when opened on your device (iPhone, iPad, Mac) completely configures it to send and receive emails.

Method

You can view the profiles you have installed:
1. iOS and iPadOS: under Settings > General > VPN & Device Management..
2. macOS under System Settings > Privacy & Security > Profiles.