Password Reset Email in SPAM folder

Our password reset emails are ending up in the user’s Gmail SPAM folder, pretty much everytime.

We are hosting our softr app on a sub-domain of our main site:

Any tips on how to improve the deliverability?

Has anyone set up SPF and/or DKIM records for email originating from Softr?

We could share details to setup a DKIM pls dm us on support chat. That might help