Gmail was one of the last services to add blue checkmarks.

But that was the thing a lot of people needed even more than checkmarks on social media.

At least I have more than 2,000 unread messages from the services.

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Vladislav Mashirenko

That was the hole used for fraud.

How do Gmail checkmarks work?

Blue checkmarks in Gmail require three layers of protection to verify an email address.

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Can we trust them?

Both yes and no.

When Im writing the article, even emails sent by Google arent verified.

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That puts the whole system on the edge.

And therefore, users would pay less attention to the verification marks.

Another problem is the overall complexity of the verification process, and theres nothing Google can do about this.

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How many Gmail accounts can you have with one phone number?