Is it possible to automatically filter out languages written in an unwanted language, for example france?
P.S.: The topic
Rules to filter foreign language messages
has been posted 2021 without answer!!!
We don’t have the feature to filter messages by the language they are written in right now.
You can add this idea to our Sleekplan, where users can post and vote on different feature and improvement ideas, so it can be considered for future updates: https://emclient.sleekplan.app/
If you’re for example getting a lot of spam in specific language, you could copy the sentences that are often repeated and create custom rules (menu>Rules on Windows, Tools>Rules on macOS) to delete or move messages with these specific word or sentences.
It will not cover all messages with the specific language, but it could help alleviate at least a little bit of the unwanted messages.