[Mailman-Users] DMARC bouncing of yahoo and hotmail users

[Ricardo Kleemann]

Hi,

I've started noticing bounces to yahoo and hotmail users with this
rejection message:

 Unfortunately, messages from (xxx) on behalf of (yahoo.com.br) could not
be delivered due to domain owner policy restrictions. (in reply to end of
DATA command))

In researching this problem I found this thread:

http://osgeo-org.1560.x6.nabble.com/OSGeo-1454-mailman-Mass-bouncing-of-yahoo-user-subscriptions-td5181289.html

>From the thread it seems to indicate that Mailman v2.1.19 would have a
workaround for the issue.

First, does anyone know if the updates in Mailman do indeed address the
issue?

Second, my server is running Ubuntu linux with Mailman v2.1.16 and I'm not
able to update to a new version via the apt-get command since this version
of Ubuntu has v2.1.16 as the "latest". Is it safe for me to update Mailman
via a tarball and not mess up the packaged installation?

thanks
Ricardo