Emails sent through my site via a jot form is "unauthenticated".

Google says make sure messages sent are authenticated using DKIM (preferred) or SPF. Can someone help me with this please? I'm clueless. Thanks

I cloned your form and sent a test submission but I did not receive a message from google saying that the email notification I received is "unauthenticated." I see you are using noreply@jotform.com as the sender email. Jotform uses AmazonSES for "noreply@jotform.com" sender. To avoid getting the message again, I would suggest you contact your email service provider and ask them to whitelist jotform's addresses here: Whitelisting JotMails IP Addresses. Regards.