On Thu 13 10 2022 15:35, Jonathan Corbet wrote: > So this seems to be just a description of how email works Well it felt appropriate to warn the user, because many people (like myself before) might not realize this is happening even if they think they know how email basically works. > the Received headers always show the path through the net. Yes, but is also dependent on the SMTP server configuration, so someone might not realize that changing the server would add such sensitive data to something public. > Is this really something that we need to cover in the kernel docs? It's part of the process, is it not? I'm sure many people would like to have this information before starting on the kernel for the first time.