Using classic Outlook for Windows in business environments
What I'm afraid is happening also, is that legitimate mail subscriptions that I signed up for are being marked as Spam/phishing because there are a few companies I signed up for that I no longer get in my emails.
This is off topic .. please keep the replies specific to the above case.
... and you are also incorrect in this case. email's which you have signed up for will typically first get placed in the junk folder unless you mark them as "not junk". This is a mechanism that helps identify mass-market email senders.