The root email on POSIX systems gets frequent updates on how the system is operating and it's important that you keep up with these. Rather than having to log into your system all the time, you can have your system forward these emails to another email account that you check more frequently. The steps are quite simple:

Edit the /etc/aliases file and change the line that reads # root: me@my.domain to

root: name@emailaddress.com

where name@emailaddress.com is whatever your email address is.

In order to make the changes effective, run

$ sudo newaliases

Depending on how your spam filtering is set up on your email account, you may have to look in the junk or spam folder to view these emails.