Email Alerts for planned maintenance

Hi, it would be really cool if the admin could send Email Alerts to all users.
Something like planned maintenance.
There is already the test email system, so i don´t think it would be too hard to implement this.
Would be nice to hear your thoughts about this.

Absolutely agree, I’m running it ob unraid and we finally got the argon2 support so I would like to send an email saying “hey please update your security settings” or things like that