Comment by rmdes

Someone should try "artisanal email server" using cloudron or yunohost ! the bigger problem is that "authoritative" email monopolies such as Gmail, 365 and the other big ones arbitrarily define and impose what is a legit email server or not and even with better score than gmail an "artisanal" email server can suffer from being classified into spam by the big tech players just because they can and will do anything to maintain their monopoly.