[Rhodes22-list] Rhodes22 Mailman list and DMARC issues

[Hank]

Excellent!  I hope it works.  Now let's see if you can figure out who this
is.

On Thu, Apr 14, 2016 at 9:43 AM, Michael Weisner <mweisner at ebsmed.com>
wrote:

> This posting is not about sailing.  If you are interested in the mechanics
> of the mail delivery via “da list” you may find this posting worth the time
> to read.  If not, just hit DELETE and wait for mail about sailing.
>
>
>
> The lack of a sender’s name in the From line of the Rhodes22-list is not a
> bug.  It is the direct result of trying to comply with the DMARC email
> rules.
>
>
>
> In an attempt to reduce the quantity of spam, ISPs have created hurdles
> for mailing lists using DMARC (Domain-based Message Authentication,
> Reporting & Conformance) standards.  It adds a reporting function that
> allows senders and receivers to improve and monitor protection of the
> domain from fraudulent email.
>
>
>
> To prevent issues with DMARC which caused automated member unsubscribing
> from “da list” due to ISP rejected emails in the past, John removed the
> sender information, making “da list” anonymous.  This worked and we were
> able to continue to send and receive emails as a list.
>
>
>
> The current list server was built with a new and improved version of the
> mailman list manager (2.1.18) which attempts to fix the DMARC issue.  The
> developers of the mailman software have published the following:
>
>
>
> DMARC is a standard developed as a technique to reduce email spam and
> phishing.  Unfortunately, it has negative consequences for mailing lists,
> essentially breaking long established mailing list norms, standards, and
> behaviors.   Yahoo! recently began publishing a DMARC policy for rejecting
> all messages that fail the signature tests, and every mailing list with
> Yahoo! members started seeing bounces from these members.  This has caused
> the Mailman community of members, list administrators, and developers
> enormous pain.
>
>
>
> Mitigating the effects of the DMARC reject policy are difficult.  All
> known mitigation techniques break some user expectations and/or degrade the
> user experience.  Still, it's incumbent on the Mailman developers to try to
> reduce the pain our users feel, and to provide some options for site and
> list administrators who find themselves caught in the middle.   This page
> attempts to capture the Mailman developers' current thinking about the
> problem.
>
>
>
> Solutions are difficult and complicated.  The DMARC authors essentially
> acknowledge that adopting DMARC requires changing mailing list habits.  You
> cannot continue to run your mailing list the way you always have, in DMARC
> compatible way.  Mailman 2.1.16 was the first version that added some
> workarounds for DMARC rejections, with refinements ongoing in subsequent
> releases.
>
>
>
> As a result, I have changed the list configuration from “anonymous”  to
> “Rewrite the From: header with the posters name 'via the list' and the
> list's address and merge the poster's address into Reply-To:” in an effort
> to restore some of the sender’s information.  If it works, great!  if I
> start getting a lot of rejected emails due to DMARC, I will set us to
> anonymous again.  This is a test.
>
>
>
> Mike
>
> s/v Windlass ('91)
>
> Nissequogue River, NY
>
>
>
> -----Original Message----- Sent: Wednesday, April 13, 2016 9:54 PM
> Robert,
>
>
>
> The lack of transparent names is kind of unique to this list.  It’s not a
> feature, it’s a bug.
>
>
>
> {clip}
>
>
>
> Peter Nyberg
>
> Coventry, CT
>
> No Boat Yet (but next week, according to the current plan)
>
>
>
>
>
> > On Apr 13, 2016, at 8:55 PM, The Rhodes 22 Email List < <mailto:
> rhodes22-list at rhodes22.org> rhodes22-list at rhodes22.org> wrote:
>
> >
>
> > Thanks for the info and encouragement.  I an new to the list and did
>
> > not realize that names or user names did not appear.
>
> >
>
> > Robert
>
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