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

1. Log in to your account at www.mailflatrate.com and go to "Domains -> Sending domains".
2. Click on "Create new domain" and paste your domain like example.com (not your email!).
3. After saving you will find the SPF and DKIM details for your sending domain.
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NOTE: If you manage you domain in Valimail, you will need to add the DKIM key on your domain's configuration page in the Valimail platform.

You can also find the instructions on how to set up DKIM and SPF for Mailflatrate, here.

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

Once you establish that Mailflatrate 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.