[Mailman-Users] DNSException: Unable to query DMARC policy

2020-06-21 Thread Stephen J. Turnbull
Johannes Rohr writes: > We are running Ubuntu 18.04 LTS, the current mailman version is > from 2018. Except from installing the occasional security updates, > I don't see what has changed, that might be responsible for these > timeouts. I don't see why that would be a Mailman issue, though.

[Mailman-Users] DNSException: Unable to query DMARC policy

2020-06-20 Thread Johannes Rohr
Dear all, lately my mailman instance has applied the DMARC workarounds an increasing number of mails. Looking into /var/log/mailman/error, I see a large number of messages containing the string "DNSException: Unable to query DMARC policy for [address]: connection timed out". We are running