Hello,
I am using SendGrid to send emails via Wix Code. However, the recipient receives the email as spam.
I have been advised to setup domain authentication, but I don’t know how to do this with Gmail and SendGrid does not have any instruction for this - any ideas?
See here:
https://sendgrid.com/docs/ui/account-and-settings/troubleshooting-sender-authentication/
and here:
https://support.wix.com/en/article/adding-dns-records-in-your-wix-account
As J.D. states above you need to set up authentication on your SendGrid account so that email clients known they are sending email for you.
Along with the pages that J.D. has linked for you above, also have a look at this page as it provides a video on what to do too.
https://sendgrid.com/docs/ui/account-and-settings/how-to-set-up-domain-authentication/
I have already tried this, but there are no instructions and videos to do this with Google mail.