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Revise docs for OVERRIDE_HOSTNAME

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Align comment in mailserver.env with docs
https://github.com/docker-mailserver/docker-mailserver/pull/4492#discussion_r2108695188
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s0ftcorn 2025-05-27 23:43:45 +02:00 • committed by GitHub
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docs/content/config/environment.md
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@ -19,6 +19,12 @@ If you can't set your hostname (_eg: you're in a container platform that doesn't
- **empty** => Uses the `hostname -f` command to get canonical hostname for DMS to use. - **empty** => Uses the `hostname -f` command to get canonical hostname for DMS to use.
- => Specify an FQDN (fully-qualified domain name) to serve mail for. The hostname is required for DMS to function correctly. - => Specify an FQDN (fully-qualified domain name) to serve mail for. The hostname is required for DMS to function correctly.
!!! warning
`OVERRIDE_HOSTNAME` is not a complete replacement for adjusting the containers configured hostname. It is a best effort workaround for supporting deployment environments like kubernetes.
Typically this feature is only useful when software supports configuring settings to use a value that'd otherwise default to the hostname. Some software like [Fetchmail are known to be incompatible][gh-issue::hostname-compatibility] as they retrieve the hostname via querying the kernel.
##### LOG_LEVEL ##### LOG_LEVEL
Set the log level for DMS. This is mostly relevant for container startup scripts and change detection event feedback. Set the log level for DMS. This is mostly relevant for container startup scripts and change detection event feedback.
@ -1183,3 +1189,4 @@ Provide the credentials to use with `RELAY_HOST` or `DEFAULT_RELAY_HOST`.
[postfix-config::relayhost_maps]: https://www.postfix.org/postconf.5.html#sender_dependent_relayhost_maps [postfix-config::relayhost_maps]: https://www.postfix.org/postconf.5.html#sender_dependent_relayhost_maps
[postfix-config::sasl_passwd]: https://www.postfix.org/postconf.5.html#smtp_sasl_password_maps [postfix-config::sasl_passwd]: https://www.postfix.org/postconf.5.html#smtp_sasl_password_maps
[gh-issue::tls-legacy-workaround]: https://github.com/docker-mailserver/docker-mailserver/pull/2945#issuecomment-1949907964 [gh-issue::tls-legacy-workaround]: https://github.com/docker-mailserver/docker-mailserver/pull/2945#issuecomment-1949907964
[gh-issue::hostname-compatibility]: https://github.com/docker-mailserver/docker-mailserver-helm/issues/168#issuecomment-2911782106