Mail-Tester checks the correctness and behavior of emails so they are not considered spam

I liked the idea of Mail-tester.com, which I already have stored in my Favorites Tools folder because you never know when you will be able to need it. Basically score from 0 to 10 sending an email, to make sure that everything is correct and that it is not considered spam to the first ones of change. And it is that today with the spleen that has become the email, 90% of all that arrives is spam. And although antispam programs do their job, somet…