On Sat, November 8, 2014 8:35 pm, Stephen Harris wrote:
On Sat, Nov 08, 2014 at 05:58:53PM -0800, Keith Keller wrote:
The fundamental reason is because Mailman is rewriting the headers in an incompatible way. It is not his site's usage of DKIM. This is a known issue with Mailman. (I used to have a good link explaining the issue, but can't find it now; if I find it later I'll post it.)
So we have a 20-year old piece of technology ("mailman") and a modern proposal ("DKIM")... and somehow it's mailman's fault. Uh huh.
Note; it's not just mailman that has problems, it's _any_ mail forwarder. Going back 27 years to my first Unix account, I could create a file called ".forward" that would forward my mail to another address. This is BROKEN by DKIM.
Any constructive suggestion how to deal with e-mail of people who moved on? Forwarding is a a solution. What is suggested instead (in the realm of DKIM)?
Valeri
Basically DKIM is incompatible with how internet email works.
But here's the thing... I think DKIM has a potential future; we need to _change_ how the internet works. So mailman will need to be rewritten; mail forwarders will need to change. And so on.
I use DKIM on my domain but I specifically set it to "fail safe" (deliver it anyway) because I _know_ the internet, today, isn't compatible. I get email reports so I can see if spammers _are_ sending as me.
The problem is with domains like yahoo.com who have a "fail deny" policy. Any yahoo.com sender gets so much mail rejected that many mail lists auto-block yahoo senders these days.
The problem, ultimately, is with senders with a "reject" policy published. DKIM is not compatible with internet email today, and so mail from those senders _will_ be rejected.
--
rgds Stephen _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
++++++++++++++++++++++++++++++++++++++++ Valeri Galtsev Sr System Administrator Department of Astronomy and Astrophysics Kavli Institute for Cosmological Physics University of Chicago Phone: 773-702-4247 ++++++++++++++++++++++++++++++++++++++++