I forward my email address to a Gmail account, and I've had a problem where a lot of my real mail goes to my spam folder. I wasn't sure why this was happening, but recently I saw a post on this forum about Gmail rejecting forwarded mail, so maybe the forwarding was the issue.
This pushed me to sign up for Google Domains, because they have their own email forwarding, which should be guaranteed to work with Gmail. And, fortunately, it works. I switched a few days ago, and my spam filtering was immediately better. It's such a relief.
Has anyone else had this issue?