SPF(supported)
DKIM(recommended)
This article covers the SPF and DKIM authentication processes for Smartsheet and how they are managed in Valimail. While only one of the two authentication methods is required for an email to pass DMARC, our recommendation is to configure both whenever possible.
Configuring DKIM authentication for your Smartsheet emails
Ensure your account has a validated primary domain. If not, you are taken to the Domain Validation page to add and validate your primary domain.
Select the custom email domain name to be used for the setup.
The setup wizard presents the public DNS records you need to create for your custom email domain. If you don't have access to modify your organization’s public DNS, you should take the information to your IT team or domain administrators to set those up.
After the public DNS records are created for the custom email domain, you need to complete the verification step in Admin Center.
When verification of the custom domain is completed successfully, the feature is enabled for your organization. All users of your organization will start seeing Smartsheet emails sent from your custom email domain.
NOTE: If you manage you domain in Valimail, you will need to add the DKIM key/s on your domain's configuration page in the Valimail platform.
There is a warm-up period of 10 days when emails are gradually switched from smartsheet.com to the new sending domain.
You can also find the instructions on how to set up DKIM and SPF for Smartsheet, here.
Add a Smartsheet DKIM key in Valimail
You can find more detailed information on how to add a DKIM key in Valimail, here:
Configuring SPF authentication for your Smartsheet emails
Once you establish that Smartsheet is an authorized sender for your domain, you will need to add the service in your Enabled Senders.
You will find more detailed information on how to add a service for your domain in Valimail, here:
Note: We encourage you to use the comment section for any useful information about your sending service, such as the name of the service owner, change request ticket numbers, etc.