To stabilize Rspamd and allow for it to become the default, we need to do the following:

• correct/adjust/improve the documentation about imprecise/misleasing statements concerning the current status of Rspamd's implementation in DMS and upcoming changes
• add proper, canonical (with DMS' volume directory hierarchy) mount directory paths so users do not need to manually mount to /etc/rspamd/override.d/; also adjust docs about /etc/rspamd/override.d (see https://docker-mailserver.github.io/docker-mailserver/edge/config/security/rspamd/#manually)); this dir will be linked to /tmp/docker-mailserver/rspamd/override.d/
• Finish [FR] Replace reject_unknown_client_hostname with Rspamd HFILTER_HOSTNAME_UNKNOWN and make it configurable #3228
• Add more unit & integration tests (for multiple configuration options)
• improve DKIM signing support (does not have to be complete, but aid the user for now)
• add info to docs about soft_reject_on_timeout (DNS)
• add ENABLE_POLICYD_SPF=0 to https://docker-mailserver.github.io/docker-mailserver/edge/config/security/rspamd/#a-very-basic-configuration
• add helper for checking if var is a number and check for Rspamd ENV vars
• add checks whether OpenDKIM/OpenDMARC/policyd-spf/Postgrey are enabled
• move rspamd-modules.conf into docker-data/dms/config/rspamd/ and rename it to custom-commands.conf; make sure the code catches the old location