This article covers the SPF and DKIM authentication processes for Rejoiner 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.

Rejoiner typically uses a dedicated subdomain setup for DKIM authentication, a subdomain which you will need to create in your DNS.

You will then need to contact Rejoiner support, so they can help you set up DKIM for your domain.

You can find out more on how to set up DKIM and SPF for Rejoiner, here.

You can find more detailed information on how to add a DKIM key in Valimail, here:

Once you establish that Rejoiner 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.