[NCUC E-team] Mailing list problems, OS upgrade

[Milan, Stefania]

thanks Tapani!



________________________________________
Da: e-team-bounces at lists.ncuc.org <e-team-bounces at lists.ncuc.org> per conto di Tapani Tarvainen <ncuc at tapani.tarvainen.info>
Inviato: martedì 3 novembre 2015 14.36
A: e-team at lists.ncuc.org
Oggetto: [NCUC E-team] Mailing list problems, OS upgrade

Dear all,

You may have noticed Bill's problems with ncuc-discuss list.

The reason was easy enough to find in logs:

"550-5.7.1 Unauthenticated email from yahoo.com is not accepted due to
domain's 550-5.7.1 DMARC policy. Please contact administrator of
yahoo.com domain if 550-5.7.1 this was a legitimate mail. Please visit
550-5.7.1 https://support.google.com/mail/answer/2451690 to learn
about DMARC 550 5.7.1 initiative."

For those who don't know about DMARC, what this means is that
Yahoo has in effect deliberately broken traditional mailing
lists by declaring that all mails with yahoo.com -addresses
coming from anywhere but Yahoo's own servers are spam,
and Google takes that at face value.

That means that Yahoo users' messages to the list
will not reach Google users.

There's a workaround in recent versions of Mailman,
but rather than upgrade just it, I think it'd be better
to upgrade the entire operating system.

It is normally a fairly easy process to go from one Ubuntu
version to another, if all goes well it should not
cause more than a few minutes interruption in the website,
no mail should be lost, only possibly delayed a little,
although it's always possible all doesn't go well.

Given the geographical distribution of our membership
there's no really good time for any downtime, so I'm
planning to go ahead and do it a bit later tonight unless
someone objects - I'd want it done before leaving to
João Pessoa on Thursday.

--
Tapani Tarvainen
_______________________________________________
E-team mailing list
E-team at lists.ncuc.org
http://lists.ncuc.org/cgi-bin/mailman/listinfo/e-team

The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination, distribution, forwarding, or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited without the express permission of the sender. If you received this communication in error, please contact the sender and delete the material from any computer.