I was reading somewhere that we can set up email adresses like firstname.lastname@example.org
The author said that this was a good way to track who send spam to us.
For example if you sign up at a service/website that you think it might send you spam,you first create a subdomain for your email adress and sign up with that.
But there was no explain how to do this and also how could we access these "sub emails".
Does anybody know?