"Newsletters from my alumni organization go to spam. Medical appointments from my doctor who has a self-hosted server with a patient intranet go to spam. Import

"Newsletters from my alumni organization go to spam. Medical appointments from my doctor who has a self-hosted server with a patient intranet go to spam. Important withdrawal alerts from my bank go to spam. Purchase receipts from e-commerces go to spam. Email notifications to users of my company's SaaS go to spam." Are you talking here about incoming emails? I expected that these would be reliably delivered to you and that the problem is only with emails you send to the large providers?