Gainsight requires special configuration actions outside of Authenticate. Please follow these steps to complete configuration for Gainsight, and then return to your automation-guided task list in Authenticate.



1. Make sure you have added Gainsight as an 'Approved Sender' in Authenticate for the domain you are configuring it for.


Note: If Gainsight has not been approved, please do so now by selecting it from the ‘Service Name’ dropdown.




2. DKIM keys for Gainsight must be added manually. Contact Gainsight Support to obtain the DNS settings. You will receive a set of DNS Entries similar to the following sample:



a. In the Senders section under the 'Approved tab in Authenticate, click on Gainsight:


b. Then, click on 'Add DKIM Key':



c. Fill in the information for the DKIM public key you need to add and click on 'ADD':



3. Once you’ve completed these steps, you can begin sending authenticated email using Gainsight.


Additional info from the Gainsight FAQ

 

Does using SendGrid's automated security use up a DNS lookup on our SPF?

No, the SPF is managed by SendGrid.

How will using a subdomain affect sending emails from Gainsight?

Emails will be signed by the subdomain. Sending from your base domain will result in the envelope-from using the subdomain, while the header-from and reply-to will be the base domain, if configured as such.

  

Can we use custom DKIM selectors for the CNAMES?

Yes. S1 and S2 is default for SendGrid but we (Gainsight) use gs and gs2. You may request a custom DKIM selector of up to three characters.

Can we allow a subdomain?

Yes.

 

Additional

https://support.gainsight.com/SFDC_Edition/View_More_Categories/Training_and_Videos/Implementation_and_Onboarding/Onboarding_Step_4_Email_Service_Configuration

 

https://support.gainsight.com/Gainsight_NXT/Timeline/02Admin_Guides/Configure_Email_to_Timeline