All,
Within the last year, Yahoo has published some strict DMARC filtering policies,
and Gmail is dutifully rejecting emails that fail the DMARC policies.
Unfortunately, this has some negative consequences for other list members, even
those without a Yahoo address (in particular, Gmail bounces messages that fail
the DMARC checks, and after a certain number of bounces, Mailman unsubscribes
the Gmail member from the list).
Details: http://wiki.list.org/DEV/DMARC
The NUT lists are hosted on Debian's Alioth service, which appears to be
running Mailman version 2.1.15. Unfortunately, this is too old to automatically
adjust the headers to make the mail appear to be coming from the list server
instead of the original sender. I have adjusted some of the parameters, but this
is more to keep my mailbox from filling up with the 100+ bounce messages that
came in this afternoon.
I would ask those who use a Yahoo address to please consider posting from
another email address for the time being. As an alternative, you may also open
an issue on our Github repository, even if it is more of a question than a bug,
and we'll try to get back to you.
[Also, sorry for the cross-post: although not yet affected, I included
nut-upsdev@ since the problem could also manifest itself there.]
--
Charles Lepple
clepple at gmail
