Why is Gmail filtering good spam?

Most people who have used many different email services have confirmed that Gmail has a fast, smooth and compact interface, especially spam filtering very well. So why does Gmail have such good email filtering capabilities? Recently Google revealed a part of the technology it is applying.

Why is Gmail filtering good spam? Picture 1
Google says it is winning the fight against spam.

According to Google , the company has adopted two account authentication technologies, DomainKey Identified Email ( DKIM ) and Sender Policy Framework ( SPF ), developed and developed by large companies and businesses in the Internet environment. completed, starting in 2004. So, Google has a solution to filter spam right from the authenticity of user accounts, not only focus on the content of the email sent.

Since then, Google said, up to 91.4% of emails were sent by authenticated accounts based on the two technologies to the right address and mailbox Inbox of the recipient. At the same time, billions of junk e-mails are sent by unsatisfactory accounts DKIM and SPF have been listed correctly in the Spam folder.

However, depending on the account, depending on the email, Google has different authentication measures. According to Google, 74.7% of emails are authenticated with both DKIM and SPF, 14.4% only use DKIM and 2.25% only use SPF.

Why is Gmail filtering good spam? Picture 2
The graph shows the amount of email sent scanned by DKIM or SPK technology or both.

In addition, Google added that more than 80,000 domains around the world are deploying DMARC spam blocking technology, which filters out hundreds of millions of " dirty " emails every week.