[vidarh]

> might find it difficult to configure it.

There is nothing to configure. If you want to filter it into folders, then, sure. That is an idea for a feature for e-mail clients, or an e-mail provider (*), not for a separate communications services.

> Sending automated messages won't be possible through RelayBeam, because marketing companies won't have any tools or APIs to do so.

That makes it a total non-starter, because a lot of the messages I use filters to organise are automated messages I want and/or need to receive. So now I then still need to hold onto my e-mail because the proprietary platform you're trying to push is trying to tell me how and who can and can't message me.

To me, that you can control this means it's not something I'll consider a viable option.

(*) I used to run an e-mail service where username+[folder]@domain would automatically send the message straight to the named folder, but this is also easily achieved by providing a filter.