docs: add FAQ entry about DNS servers and drop feature request on custom DNS servers for Rspamd (#3966)

* add FAQ entry about DNS servers

I also opted for including a quote from @polarthene which illustrates
how DNS servers are a difficult topic and should not be DMS'
responsibility.

* link to DNS FAQ from Rspamd page & drop feature request

The feature request annotation has been removed because we decided it's
not DMS responsibility to ensure correctly working DNS servers.
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Georg Lauterbach 2024-03-31 04:14:02 +02:00 committed by GitHub
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2 changed files with 15 additions and 6 deletions

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@ -94,11 +94,7 @@ Rspamd provides a [web interface][rspamd-docs::web-interface], which contains st
### DNS
DMS does not supply custom values for DNS servers to Rspamd. If you need to use custom DNS servers, which could be required when using [DNS-based black/whitelists](#rbls-realtime-blacklists-dnsbls-dns-based-blacklists), you need to adjust [`options.inc`][rspamd-docs::basic-options] yourself.
!!! tip "Making DNS Servers Configurable"
If you want to see an environment variable (like `RSPAMD_DNS_SERVERS`) to support custom DNS servers for Rspamd being added to DMS, please raise a feature request issue.
DMS does not supply custom values for DNS servers (to Rspamd). If you need to use custom DNS servers, which could be required when using [DNS-based deny/allowlists](#rbls-real-time-blacklists-dnsbls-dns-based-blacklists), you need to adjust [`options.inc`][rspamd-docs::basic-options] yourself. Make sure to also read our [FAQ page on DNS servers][docs::faq::dns-servers].
!!! warning
@ -270,3 +266,5 @@ While _Abusix_ can be integrated into Postfix, Postscreen and a multitude of oth
[docs::dms-volumes-config]: ../advanced/optional-config.md#volumes-config
[docs::dms-volumes-state]: ../advanced/optional-config.md#volumes-state
[docs::faq::dns-servers]: ../../faq.md#what-about-dns-servers