My school has provided us some emails with a custom domain (not @gmail.com but @myschool.smth) and we as students are only able to login via gmail, however i obviously do not want that. What can i do to prevent that? I tried logging into the email via Thunderbird but i get blocked because my administrator doesn’t allow that.


I would recommend in this situation:
Use Firefox or similar browser that has the ability to create container tabs
And open your school email in a dedicated school gmail container.
Then limit the container to just the dedicated sites. At least you won’t leak your browsing to google any more than you have to.
This add-on is needed to do some extra features with containers on firefox https://addons.mozilla.org/en-US/firefox/addon/multi-account-containers/