How to get email notifications when new users have signed up?

Contribute Feature
19

It is 2025 and we still don’t have feature to send emails.
I wanted followings

  1. Send email to admin when a new user is created
  2. Send Welcome email on new signup

I’ve read various workaround but they are just workaround and not email. We certainly need this feature. I run my own email server so I don’t want to use any paid services.