On 6/20/20 4:11 AM, Johannes Rohr wrote: > > 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".
If you don't currently have a caching name server running on the Mailman host, install one. In any case, note the following in Defaults.py > # Parameters for DMARC DNS lookups. If you are seeing 'DNSException: > # Unable to query DMARC policy ...' entries in your error log, you may need > # to adjust these. > # The time to wait for a response from a name server before timeout. > DMARC_RESOLVER_TIMEOUT = seconds(3) > # The total time to spend trying to get an answer to the question. > DMARC_RESOLVER_LIFETIME = seconds(5) You can increase these by setting them in mm_cfg.py. On mail.python.org, they are set as DMARC_RESOLVER_TIMEOUT = seconds(8) DMARC_RESOLVER_LIFETIME = seconds(10) for Mailman 2.1. -- Mark Sapiro <m...@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan ------------------------------------------------------ Mailman-Users mailing list -- mailman-users@python.org To unsubscribe send an email to mailman-users-le...@python.org https://mail.python.org/mailman3/lists/mailman-users.python.org/ Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: https://www.mail-archive.com/mailman-users@python.org/ https://mail.python.org/archives/list/mailman-users@python.org/
