Russell Coker via luv-main <luv-main@luv.asn.au> wrote:
On Fri, 15 Jan 2016 09:52:30 AM Tony Langdon via luv-main wrote:
Facebook is now compelling sysadmins to use SPF or DKIM. This isn't going to go away. It's only a matter of time before Internode starts using DKIM to placate Facebook.
Looks like it's a case of having to follow suit., like it or not.
I predict that mailing lists, and mail behaviour in general, will simply need to adapt to SPF, DKIM and DMARC as the emerging means of establishing the authenticity of messages with a certain degree of assurance. What this means is that (provided the sending MTA only serves authorized users) there is reasonable assurance that the sender identified in the "From" header is the actual sender, and that certain header fields and the body have not been modified in transit.
Yes. I'd appreciate it if people would stop acting like I'm doing something I want to do here. I just want mail to go through reliably and I'm doing what is necessary to achieve that goal.
Widespread use of DMARC will result in changes to well established conventions. I don't personally object to having the list server rewrite the "From" field and add a "Reply-to" header that designates the original sender; but some people have needs which differ from mine, and for them it can be an inconvenience. If I were running a mailing list server, however, I would make it compatible with DMARC "reject" policies.