SPF Record Setup for Gandi
Log in to your Gandi account.
Click on the DNS Zones tab. Select your appropriate domain and create a new version of your DNS Zone.
Click the Add button under Zone file versions.
Select the SPF from the Type drop-down menu.
Enter your sub-domain (or @ if you do not have a subdomain) into the Name field.
Enter your SPF record into the Value field.
SMTP2GO recommends to add include:spf.smtp2go.com to your SPF record.
For example, if your SPF record currently looks like this:
v=spf1 a mx ?all
You should change it to this:
v=spf1 a mx include:spf.smtp2go.com ?all
Click the Submit button.