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spam, or Unsolicited Commercial Email (Unsolicited commercial email) is something unwanted, nosy, and often dangerous, but that hasn't been such an apparent problem these days, thanks to email filters.
For those who think that this plague only started to spread in the post-internet era, you are wrong.

At the end of nineteenth century, Western Union (Telegraph Company) allowed the sending of telegraphic messages on its network to various recipients. The first example of an unsolicited commercial message took place in May 1864.
In the computer age, spam appeared a few times before the internet on networks like CTSS (Compatible Time-Sharing System), in 1971.
While these small isolated cases didn't bring much trouble, one case in particular that happened in 1994 was the first case of spam as we know it today.

A couple of lawyers from the city of Phoenix, No. Arizona, Laurence Canter and Martha Siegel, sent a message announcing their services to people interested in obtaining a US visa (Green Card).
In April of the same year, the duo had the “brilliant” idea of hiring a programmer to generate a script that would spread the message to all the newsgroups in the country. usenet, a kind of forum of the time. The message became known as “Green Card Spam”, the first large-scale spam in history, the rest you already know.

to run away from spams today is very easy, email clients like gmail e Outlook already do the job by filtering unwanted messages automatically. But what if you want to send an email on a large scale, how do you know it won't be considered spam?
Let's find out now in this tutorial how to use the mail tester, a tool to check the health (spam level) of the emails we send.
How to test if your email is considered spam 6m1b3v
- First, write your email the way you're going to send it;
- Visit the site https://www.mail-tester.com/; There you will see a random email address, such as “[email protected]";
- Send your email to the following address found on the website;
- Then check your email by clicking the blue button “Check your score".
The site will display a score of 0 to 10 to your e-mail indicating positive points and flaws to be corrected.
O mail tester will also indicate if the email you are sending the message from is in any blacklist, if there are any broken links, if your email is authenticated correctly, and it will also give you tips to improve your email presentation.
Now that you know, test your emails are healthy, and good enough to be sent without falling into the spam box.
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Very good
I use mailchimp for campaigns and I did the test of the email in which I send on this site indicated the note of the email is 10/10. and yet the emails keep dropping as spam or junk mail for new emails. I would like a solution to the problem.