Re: Migrating this list to PGLister on Friday, June 16th, 1300 UTC

Greetings!

This list has now been migrated.  Please let me know if you see any
issues or if anything is not working properly.

Thanks!

Stephen

* Stephen Frost (sfrost@snowman.net) wrote:
> Greetings, again!
>
> As an FYI, I am beginning the migration of this list now.  You may see
> emails to this list be paused for a period of time, but none is expected
> to be lost.
>
> Thanks!
>
> Stephen
>
> * Stephen Frost (sfrost@snowman.net) wrote:
> > Greetings!
> >
> > The PostgreSQL Infrastructure team will be migrating the project's
> > mailing lists from the existing system (an ancient and unmaintained
> > piece of software called "majordomo2") to a newly developed mailing list
> > system (known as "PGLister"), which better addresses the needs of the
> > PostgreSQL community and is updated to work with recent improvements in
> > email technology and spam filtering. These changes will impact certain
> > aspects of the system but we are hopeful that these changes will have a
> > minimal impact on users, although everyone will notice the differences.
> >
> > We are planning to migrate this list on Friday, June 16th 2017, at
> > around 1300 UTC.
> >
> > The changes which we expect to be most significant to users can be found
> > on the wiki here: https://wiki.postgresql.org/wiki/PGLister_Announce the
> > current version of which is also included below.
> >
> > Note that the pgsql-hackers email list is used in examples below, but
> > this change applies to all project mailing lists.
> >
> > No adjustment of Subject: lines any longer
> > --------------------------------------------------------------------
> > * The "Subject:" header will no longer be changed to include the name
> >   of the list (for example, "[HACKERS]").  This change is to avoid
> >   breaking DKIM [1] (a standard for preventing nefarious changes in
> >   email between the sender and the receiver by calculating a hash of
> >   certain headers and the body).  Not breaking DKIM signed messages will
> >   make it less likely that emails sent through our mailing lists will be
> >   classified as spam.
> >
> > * If you filter your email based on those "Subject:" header insertions,
> >   you will need to adjust your filtering rules. We recommend looking at
> >   the industry standard "List-ID:" header instead.
> >
> > New email addresses for the lists
> > --------------------------------------------------------------------
> > * Existing email addresses will continue to work for a while
> >
> > * For example, this means that pgsql-hackers@postgresql.org will change
> >   to be pgsql-hackers@'''lists'''.postgresql.org.
> >
> > * Having a flat namespace that both lists and user accounts, as well as
> >   other addresses, live in has been a maintenance issue for the
> >   PostgreSQL Infrastructure team. It also prevents us from implementing
> >   DKIM [1] on messages from postgresql.org.  Moving the lists to
> >   "lists.postgresql.org" reduces this burden, allows us to implement
> >   DKIM [1], and allows additional flexibility for handling other lists
> >   in the future.
> >
> > * The existing list email addresses will work for some time, but
> >   eventually must be retired for us to realize the maintenance burden
> >   reduction.
> >
> > Other email header changes
> > --------------------------------------------------------------------
> > * The old majordomo2 system used both non-standard and industry standard
> >   headers to provide information about which list a given message came
> >   from.
> >
> > * PGLister will use standard, industry-recognized headers to identify
> >   mailing list messages.  The non-standard header "X-Mailing-List" will
> >   no longer be included.  Any users whose filters are based on this
> >   non-standard header will need to adjust their filters.
> >
> > * The value of the headers will also be changing, to match the change
> >   of list names.  The header "List-ID" will be changed from, eg,
> >   "List-ID: <pgsql-hackers.postgresql.org>" to
> >   "List-ID: <pgsql-hackers.lists.postgresql.org>".  Users who have
> >   filters defined to use this header will need to adjust their filters
> >   to account for this change.
> >
> > * Certain email providers should be able to take advantage of these
> >   headers automatically to provide things such as an "Unsubscribe"
> >   button, but we cannot guarantee this as it depends on their systems.
> >
> > Email footer removal
> > --------------------------------------------------------------------
> > * The footer text inserted by the old majordomo2 system will no longer
> >   be included in each email (the footer is the text which starts with:
> >   "Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)").
> >   Removing the footer is necessary to avoid breaking DKIM [1] signed
> >   messages as they pass through our system.
> >
> > Cross-posts not de-duped
> > --------------------------------------------------------------------
> > * Emails cross-posted to multiple lists will no longer be de-duped, so
> >   if posted to two lists the message will be delivered twice. Both
> >   copies will have the same message-id (and can be locally de-duplicated
> >   on that), but different envelope sender and recipient addresses.
> >
> > Managing subscriptions and unsubscribing
> > --------------------------------------------------------------------
> > * PGLister includes a web interface which is greatly improved from
> >   the old majordomo2 system.  Users can log into the PGLister system
> >   using their regular community account [2].
> >
> > * The URL for users to manage their subscriptions in PGLister [3] is:
> >   https://lists.postgresql.org/manage
> >
> > * At this page, users can subscribe, unsubscribe, and adjust
> >   parameters associated with their mailing list subscriptions.
> >
> > * There is also an option at the above URL to have a test email
> >   sent from the mailing list system as if it were being sent from the
> >   list, to assist users with testing their filter settings.
> >
> > * List members who do not have a community account [2] may
> >   create an account and then, through the PGLister web interface,
> >   associate their email address(es) with their account.
> >
> > Digest capability offered by majordomo2 no longer supported
> > --------------------------------------------------------------------
> > * This was discussed with a few of the users who use digest and
> >   determined to be acceptable.
> >
> > * Using digest emails also caused problems when a user replies to
> >   the digest email.
> >
> > * There are no plans to implement digest capabilities in PGLister
> >   in the future.
> >
> > Thank you!
> >
> > Stephen (on behalf of the pginfra team)
> >
> > [1]: DKIM - https://en.wikipedia.org/wiki/DomainKeys_Identified_Mail
> > [2]: Community Account - https://www.postgresql.org/account
> > [3]: Manage subscriptions - https://lists.postgresql.org/manage