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FAQ: Unbound DNS

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- Closes #554
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Tim Möhlmann 2018-12-31 04:33:37 +02:00
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@ -312,12 +312,30 @@ spam filter weight settings.
*Issue reference:* `503`_.
rspamd: DNS query blocked on multi.uribl.com
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This usually relates to the DNS server you are using. Most of the public servers block this query or there is a rate limit.
In order to solve this, you most probably are better off using a root DNS resolver, such as `unbound`_. This can be done in multiple ways:
- Use the *Mailu/unbound* container. This is an optional include when generating the ``docker-compose.yml`` file with the setup utility.
- Setup unbound on the host and make sure the host's ``/etc/resolve.conf`` points to local host.
Docker will then forward all external DNS requests to the local server.
- Set up an external DNS server with root resolving capabilities.
In any case, using a dedicated DNS server will improve the performance of your mail server.
*Issue reference:* `554`_, `681`_.
.. _`troubleshooting tag`: https://github.com/Mailu/Mailu/issues?utf8=%E2%9C%93&q=label%3Afaq%2Ftroubleshooting
.. _`85`: https://github.com/Mailu/Mailu/issues/85
.. _`116`: https://github.com/Mailu/Mailu/issues/116
.. _`171`: https://github.com/Mailu/Mailu/issues/171
.. _`426`: https://github.com/Mailu/Mailu/issues/426
.. _`503`: https://github.com/Mailu/Mailu/issues/503
.. _`554`: https://github.com/Mailu/Mailu/issues/554
.. _`584`: https://github.com/Mailu/Mailu/issues/584
.. _`592`: https://github.com/Mailu/Mailu/issues/592
.. _`615`: https://github.com/Mailu/Mailu/issues/615
.. _`681`: https://github.com/Mailu/Mailu/pull/681
.. _`unbound`: https://nlnetlabs.nl/projects/unbound/about/