SPF and DKIM Setup for Linode
Log in to your Linode account. Go to the DNS Manager and click the Edit link under the Options for your appropriate domain.
To create a new SPF record, click the Add a new TXT record under the TXT Records section.
Note: if you already see a TXT record with a value beginning with 'v=spf1' then edit that record rather than adding a new one.
Enter @ into the Name field.
Enter the SPF record that we recommend for you into the Value field. You can find your recommended SPF record from the Sender Domains page in your SMTP2GO App.
If you are interested, take a look at some more detailed information about SPF records here.
Click the Save Changes button.
To create a DKIM record, click the Add a new CNAME record under the CNAME Records section.
Enter the Hostname we recommend into the Hostname field.
Enter the Value that we advise for your CNAME record into the Aliases to field, then click the Save Changes button.