https://bugs.exim.org/show_bug.cgi?id=2941

Heiko Schlittermann <[email protected]> changed:

           What    |Removed                     |Added
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                 CC|                            |[email protected]

--- Comment #2 from Heiko Schlittermann <[email protected]> ---
- Not all variables are expandable, yes. Some for technical reasons, other just
because nobody implemented it.
- Using environment variables to modify Exim's configuration may have security
implications. And in fact, we had a security issue some time back, related to
attacker controlled environment variables.
- If you need to use environment variables inside the configuration, you should
read about `keep_environment` and `add_environment` global options.
- In a similar scenario I use an short "entrypoint" script, which builds the
runtime configuration at container startup time.

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