> > I also believe there is a kernel.org service for sending patch series, > > but i'm not sure I remember the details. > > https://b4.docs.kernel.org/en/latest/contributor/send.html It says: The kernel.org endpoint can only be used for kernel.org-hosted projects. If there are no recognized mailing lists in the to/cc headers, then the submission will be rejected. If I want to test the email sending service, how could I test it with sending just to myself? Maybe it allows only sending to the sender.
