Re: Fw: Undelivered Mail Returned to Sender
Przemek Klosowski via Octave-maintainers <[email protected]>
| Newsgroups | gmane.comp.gnu.octave.maintainers |
|---|---|
| Organization | NIST |
| Message-ID | <[email protected]> |
On 7/10/20 11:34 AM, chloros wrote: > Hi Markus, > > the same thing happened to me on wednesday when I replied to one of the > jsondecode emails. I got the same error: > > DreamHost Email Support > <[email protected]> (expanded from <[email protected]>): > host eggs.gnu.org[209.51.188.92] said: 550-[SPF] 64.90.62.163 is not > allowed to send mail from gmx.de. > > Yet another gmx feature ... So typically what happens is that either an email listserver or someone's forwarding results in an email that claims to be from you but actually coming from gmx. The email headers specify SPF checks, and the gnu.org MTA obediently verifies them and balks. That's why modern listservers say things like From: listserver.us on behalf of [email protected] SPF is correct wrt. the actual sender, and yet you can still see who actually originated the email.