Expected behavior

The mail app must show up in available apps from the Nextcloud web interface

Actual behavior

The app is not liste

Mail app

NA

Server configuration

Operating system: Debian 10

Web server: Apache

Database: MariaDB

PHP version: 7.3.19-1

Nextcloud Version: 20.0.5

Client configuration

Browser: Firefox 84.0.2 (64-bit)

Operating system: Ubuntu 20.10

Nextcloud Report attached
2021-01-22.txt