Disable debian system mails

Debian often send you local mail for updates or stuff like this, because I find it really annoying, if I get mail notification in my shell. This is stuff from the 80s and no longer needed on mordern system.

To disable the local mails I just set a blackhole alias for my user to drop all this mails. I used this with the default debian exim config. Here is my /etc/aliases

# /etc/aliases
mailer-daemon: postmaster
postmaster: root
nobody: root
hostmaster: root
usenet: root
news: root
webmaster: root
www: root
ftp: root
abuse: root
noc: root
security: root
root: dgo
dgo: :blackhole:

You just have to add the :backhole: behind your user. The exim will drop all mails.

mail  debian