Is it possible to configure SPF / DKIM for @gmail.com email (not Google Workspace)?

Question

I use Google Apps Script to send emails, sometimes from @gmail.com addresses. Those emails are very frequently going to the SPAM folder.

I understand it's possible to set up SPF and DKIM in my domain's DNS settings. Is it possible to do something like that for these @gmail.com emails?

Answer 1

Short answer: no.

This is because you don't manage gmail.com. If you want to implement SPF/DKIM/DMARC you should get a domain of your own and specify the settings there.

Regarding the first sentence: if your email is sent to spam, then investigate why that is. Or, better yet, send the email authenticated rather than anonymously. Yes, making an assumption here.