DKIM is crucial in preventing email spoofing, where attackers send emails that appear to come from someone else’s address. By confirming that an email is genuinely from the domain it claims to be from and that it hasn’t been tampered with during transit, DKIM helps protect against phishing and email spam.
This Google Workspace Help article, Turn on DKIM for your domain is a step-by-step article to assist you in turning on your DKIM.
NOTE: These instructions are for Google Workspace email addresses. Instructions are accurate except for the link in step 2 that goes to Apps > Google Workspace > Gmail
The updated URL is: https://admin.google.com/ac/apps/gmail/authenticateemail