I wish they would do this with gmail. My dmarc reports say I'm authenticated and aligned but mail from my server goes to spam even though I'm the only user on

I wish they would do this with gmail. My dmarc reports say I'm authenticated and aligned but mail from my server goes to spam even though I'm the only user on the domain and never send automated or group emails. Relaying it via icloud fails everything but gets delivered to people's mailbox. WTF?