To setup DKIM you will need to add 4 CNAME records with your DNS host provider that Freshdesk is going to provide to authenticated these messages. The following steps are to enable DKIM.
- Login to your Freshdesk account as an Admin.
- Go to Admin > Support Channels > Email Settings > Advance Settings > Configure DKIM.
- Copy the 4 CNAME records Freshdesk provides with your DNS host provider.
- Once you have added the 4 CNAME with your DNS host provider, you will return back to Freshdesk and select the "Verify" button. Once the Status gives you a green checkmark, you have completed the process of authenticated the domain with Freshdesk.
It is recommended to run a test to make sure these messages are signing with DKIM. You can do this by reviewing the message headers of these messages.