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DKIM Email Authentication in Gmail


Email spoofing is the practice of sending a forged email that appears to be from a legitimate email domain, but is in fact from a different sender. Email protocols don't always verify that an address in the FROM field is one which the sending system is authorized to send from. A different (but similar) email address may be listed in the REPLY-TO field.

DKIM - DomainKeys Identified Email - is a method of authenticating the domain of an email sender.

Your Gmail account can run a DKIM authentication.

Follow these steps:

1. In a gmail message near the reply arrow, click on the drop arrow and select 'Show original'.

2. The resulting message will include a DKIM field indicating whether or not the particular message has passed the DKIM authentication test.

3. In the email header look for the line, "dkim=pass header", as official verification that the email has DKIM authentication.


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Sean O'Shea has more than 20 years of experience in the litigation support field with major law firms in New York and San Francisco.   He is an ACEDS Certified eDiscovery Specialist and a Relativity Certified Administrator.

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The views expressed in this blog are those of the owner and do not reflect the views or opinions of the owner’s employer.

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