Email validation account link wrong base url

Remove the trailing slash on the url but yes if you have your api routes and admin split you need to use the https://my-strapi-bo.com/api

You will have an issue in routing through trying to mount the admin panel on the root of your strapi domain. We have an open bug report about that here:

See the following guide for Nginx which does also include the server.js settings: https://strapi.io/documentation/v3.x/deployment/nginx-proxy.html#sub-folder-split and https://strapi.io/documentation/v3.x/deployment/nginx-proxy.html#sub-folder-split-strapi-config