On Thu, Oct 9, 2014 at 2:20 PM, Andrew Koch <ak47@gawul.net> wrote:
To correct this moving forward, selective rewriting of the from header has been recommended, but requires an upgrade to the Mailman software.
If the admins have settled on a best practice, it could help other Mailman operators like myself. Two questions spring to mind: 1. With the planned method, how will reply behavior be affected? 2. Will this be an upgrade to 2.1.16, or a pre-release version of 2.1.18, or something else?
In 2.1 16 a from_is_list feature was implemented which if enabled by a site configuration option would offer a list admin the ability to either: * Rewrite (Munge) the From: header with the posters name 'via the list' and the list's address and merge the poster's address into Reply-To: or * Wrap the message as a message/rfc822 sub-part in a MIME format outer message with From: and Reply-To: as above. Implemented now for release in 2.1.18 are the following: * The from_is_list feature from 2.1.16 is always available. * There are new settings in Privacy options - Sender filters: ** dmarc_moderaction_action is a five valued setting with values *** Accept - accept the post without rewriting From: or wrapping the message *** Munge From - rewrite the From: and Reply-To: as in from_is_list *** Wrap Message - wrap the message as in from_is_list *** Reject - reject the post *** Discard - Discard the post ** dmarc_moderaction_notice is a custom reject message to replace the default Reject message. * The above options other than Accept override the from_is_list setting for messages whose original From: domain publishes a DMARC policy of p=reject or p=quarantine. A per-list option is available to limit this to just p=reject or to apply it to either p=reject or p=quarantine. If the option is Accept, the from_is_list setting applies. * There is a site option to set the default for dmarc_moderaction_action and list admins may not set the action to a setting which is above the site default in the above list. E.g., if the site default is Reject, list admins can only set Reject or Discard; if the site default is Munge From, list admins can select anything but Accept. Royce