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

The DKIM configuration for turboSMTP involves the creation of a TXT-type records for the subdomain “turbo-smtp._domainkey” as shown below:

Domain

turbo-smtp._domainkey

Value

k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDT3MWLni6so1q9eQggRYBCLHFjohZkCnYHH8gZNDBm6zRrodRVpWpJQW7x3cWWiuBhS1X0IfBB80l5tqFa+yc+mVgnk8tkUzOHFbPQPp4fi7egTpMtsQW/ZMrxw73SItNvPr72qvJTYZNPxarMx+ULjEWybcfEdXHPY8jslGcpCwIDAQAB

Important: If you manage DKIM in Valimail, yo uwill need to add the key selector and value from above on your domain's Configuration page in Valimail Enforce.

To guarantee an optimum delivery rate and prevent your emails from ending up in spam, after adding the TXT DKIM key in Valimail Enforce as shown below, you have to activate the Domain Authentication mode in your turboSMTP account. Here are the simple steps to follow:

1. Log in to your turboMSTP account.

2. From the main menu select Settings.

3. In the DNS Records box, click the Edit button.

4. Then click on the gray switch labeled Disabled.

5. Wait for the confirmation message, the switch will turn green and its label will change to Enabled.

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

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

Once you establish that TurboSMTP 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.