Hi,
When Discourse sends email, it uses the server name in the SMTP From transaction. The problem with that, is that I relay it to an upstream server to do the actual sending, and if it fails to send, the bounce message never gets back to the server (this is fine; I don’t want Discourse to receive email). But the bounces pile up in our postmaster inbox.
Is it possible to set the SMTP From to some other hostname, so that the bounces go to a valid email address and can be handled appropriately (eg by telling the user to fix their dang email address)?
I have already tried setting the Notification Email setting in the admin panel, but the upstream server ignores that and tries to send the bounce to the upstream server it actually received the email from instead of to the From path in the actual email.