master
Florent Daigniere 2 years ago
parent 6a0e881522
commit 9a38a22df3

@ -215,10 +215,10 @@ The ``LETSENCRYPT_SHORTCHAIN`` (default: False) setting controls whether we send
ISRG Root X1 certificate in TLS handshakes. This is required for `android handsets older than 7.1.1`
but slows down the performance of modern devices.
The ``TLS_PERMISSIVE`` (default: true) setting controls whether ciphers and protocols offered on port 25 for STARTTLS are optimized for maximum compatibility. We **strongly recommend** that you do **not** change this setting on the basis that any encryption beats no encryption. If you are subject to compliance requirements and are not afraid of loosing emails as a result of artificially reducing compatibility, set it to 'false'. Keep in mind that servers that are running a software stack old enough to not be compatible with the current TLS requirements will either a) deliver in plaintext b) bounce emails c) silently drop emails; modern servers will benefit from various downgrade protections (DOWNGRD, RFC7507) making the security argument mostly a moot point.
.. _`android handsets older than 7.1.1`: https://community.letsencrypt.org/t/production-chain-changes/150739
The ``TLS_PERMISSIVE`` (default: true) setting controls whether ciphers and protocols offered on port 25 for STARTTLS are optimized for maximum compatibility. We **strongly recommend** that you do **not** change this setting on the basis that any encryption beats no encryption. If you are subject to compliance requirements and are not afraid of losing emails as a result of artificially reducing compatibility, set it to 'false'. Keep in mind that servers that are running a software stack old enough to not be compatible with the current TLS requirements will either a) deliver in plaintext b) bounce emails c) silently drop emails; moreover, modern servers will benefit from various downgrade protections (DOWNGRD, RFC7507) making the security argument mostly a moot point.
.. _reverse_proxy_headers:
The ``REAL_IP_HEADER`` (default: unset) and ``REAL_IP_FROM`` (default: unset) settings

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