On Tue, March 31, 2015 16:18, Frank Cox wrote:

On Tue, 31 Mar 2015 16:11:38 -0400 James B. Byrne wrote:

...

Does anyone have any idea what has happened and why I might be getting that message?

I don't use that but have you checked to see if you now have a "rpmsave" file left after installing the update? If so, that's your old configuration and you might need to re-write the new configuration file to incorporate your previous customization.

Yes that was the problem. The OpenDKIM maintainers deprecated a configuration option (SenderHeaders) that we were using so the opendkim service would not restart. So there was nothing listening at port 8891. Removing the optin fixed the problem.

I can find no discussion of why this option was removed and the OpenDKIM readme (http://www.opendkim.org/opendkim-README) still makes reference to it as the preferred way of handling mailing lists. Go figure.

B.T.W. Redhat has apparently 'fixed' (I think) Mailman to deal with the Yahoo/AOL - DMARC problems. But only in RHEL5 (so far). As they have moved all discussion of the bug behind a paywall I can no longer follow developments and so cannot be sure.