From mboxrd@z Thu Jan 1 00:00:00 1970 From: "A. Schulze" Date: Wed, 25 Jun 2014 06:32:47 +0000 Subject: Re: [mlmmj] mlmmj and DKIM Message-Id: <20140625083247.Horde.nQCbYbAAb1g5Kt5L0saNOg1@horde.andreasschulze.de> List-Id: References: <53A949B5.8070300@uffe.org> In-Reply-To: <53A949B5.8070300@uffe.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: mlmmj@mlmmj.org Uffe Jakobsen: > I'm trying to solve a problem with some users originating and > posting to my lists from DKIM "restrained" sites. ... > Any suggestions - How do you approach such problems ? Hello, we had a similar question a month ago (unfortunately not visible in the archive) I suggest to simply not modify any message content. Not only on listservers - any MTA should be configured to avoid unnecessary content modification. In case of mlmmj thats easy. $ rm ${LIST_HOME}/control/prefix $ rm ${LIST_HOME}/control/footer $ rm ${LIST_HOME}/control/delheaders also I suggest to add a set of standard headers. These are normally not covered by DKIM signatures and should not invalidate them. $ cat ${LIST_HOME}/control/customheaders List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list Andreas