PersistIQ does not provide SPF records as there are no PersistIQ mail servers. All messages are sent directly through your gmail account, which means you just need to make sure that your SPF records are set up for properly.
Below you can find some tools to help set up your SPF records;
- Check your MX records for Google
- Check your MX records for Exchange Providers
- Check your SPF setup - http://www.kitterman.com/spf/validate.html
Please contact support if you have further questions or need assistance.