When you receive bunch of promotional emails from a website, sometimes there is a link at the bottom of the email to unsubscribe from similar future emails but sometimes there is no such link. However, Gmail provides with a button to unsubscribe from these emails regardless without visiting any other website. How does it work?
In: Technology
The email headers (which aren’t normally visible to the user) will normally contain unsubscribe links if the email is from a reputable sender. When gmail identifies that an unsubscribe link is there it will give you the option of unsubscribing in addition to reporting the spam.
You can view these headers by selecting a message and then selecting “show original”.
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