On 6/30/2020 1:49 PM, Alessandro Vesely wrote:
On Sat 27/Jun/2020 03:44:55 +0200 John Levine wrote:
This makes me wonder how many mailing lists still don't add DKIM
signatures.
Lists at vger.kernel.org and savannah.nongnu.org are not signed.
There are also some which don't seem to have found a way to deliver
valid DKIM signatures, such as those at lists.sourceforge.net.
Not all List Systems (MLM, MLS) have a transport system, so it is left
for the outbound mail processor (mail router) to handle the signing
for all outbound mail. That is how our MLS behaves. The MLS only needs
to control the subscription and submissions process by checking the
DMARC record for restrictive domains. Really no code change in MLS at
all related to DKIM.
Abandoned Legacy MLS many be a problem, but any operator who wishes to
be part of the DKIM/DMARC era, needs to understand it needs some
controls with subscription and submission checking. It doesn't need
to worry about getting support for the abandoned MLS. He just needs to
control the entry points like subscription and submission.
--
Hector Santos,
https://secure.santronics.com
https://twitter.com/hectorsantos
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