DKIM Email Authentication in Gmail

DKIM Email Authentication in Gmail

November 8, 2017

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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