readalot
Member
"Today, every single Proton Mail account comes with its own spam filter settings which are unique to that account. When you mark messages as spam or not-spam, the filter will dynamically adjust to take into account your personal preferences. You can also view and modify your personal spam filter settings(new window). Proton Mail also accounts for whether an email came from one of your contacts or not. If it comes from a contact, it is allowed through the spam filter."