How to enable mail app?

[SanchiezesCode]

Hello! Thank you for your product — it’s very useful and looks great.

I’m using the Docker version. Previously I was on v4.0.0, and today I updated to the v4.1.0 Docker image. After the update, I tried to find the new Mail app, but I can’t figure out where it is.

I also added the Mail app to my web-config.json, but it still doesn’t appear in the interface.

apps in my web config

  "files",
  "text-editor",
  "pdf-viewer",
  "search",
  "external",
  "admin-settings",
  "epub-reader",
  "preview",
  "mail"

What do I need to do to make the Mail app visible?
Where should it appear on the page?
Do I need to explicitly specify "mail" here for the Mail app to work and be visible?