Post #1253943

@d1 @helge @Paul_Taylor Well, that's always been the case. The last stage is the client's inbox, and they can write their own rules for that. If they want to route all emails from people named Dave into spam folders, there's nothing that can be done about it. In other respects, I don't agree with the use of the term non-deterministic though. That suggests (to me) randomness. You're right in that any email server in a chain can impose its own arbitrary policies, but that's been the case for years. It depends on lots of things such as the training of Bayesian filters, which online block lists are consulted, policies about bulk mailers and so on. Over the years the restrictions that servers apply have become more rigorous, but if your server plays by the rules as a good citizen in my experience it has got more reliable rather than less.