Tech »  Topic »  Using email headers to verify an email’s authenticity and the future of DMARC

Using email headers to verify an email’s authenticity and the future of DMARC


When someone receives and opens an email, they see the parts of the message that most people care about. 

In addition to the message content (the body), the recipient will typically see a few header fields, such as From:, To:, Subject:, and Date: that convey basic information about the claimed origin and topic of the message. 

Those headers represent just a small fraction of the headers that are part of the message.

The method for making hidden headers visible will differ depending on the mailbox provider. In Gmail, you can access the email header by clicking on the three dots in the upper right corner of a message and then “Show Original.” 

Other providers will have a choice on a menu such as “Show Message Source” or words to that ...


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