Need help setting up Fail2Ban

I am new to Linode and just installed linux on my pc.

I followed the Getting Started Guide and onto Secure your server guide but got stuck at the Fail2Ban part.

After copying jail.conf to jail.local

I tired setting up email notice for Fail2Ban.

In jail.local:

I changed the destination email to =>

destemail = myemail@gmail.com

sender email to =>

sender = myemail@hotmail.com

then typed in

sendmail -t myemail@gmail.com

but nothing happens. :shock:

I haven't setup anything else other than stuffs listed in Getting Started Guide, do I need to install something for email?

And I imagine that I need to put the port number and password somewhere for Fail2Ban to send email from hotmail, but where.. :?

:( Could anybody help me please?