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Updated A mail server's 101 (markdown)

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Jean-Denis Vauguet 2020-06-10 03:16:42 +02:00
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@ -86,6 +86,6 @@ When it comes to security, one may consider docker-mailserver's **default** conf
That default setup has been consciously chosen, for the project aims at supporting _by default and without custom configuration required_ all kinds of clients, including ones not supporting TLS, or ones not able (== not configured) to use enforced/implicit TLS-encrypted connections but still capable of handling opportunistic TLS.
We believe docker-mailserver's default configuration (enforcing TLS, either opportunistic or implicit) to be a good middle ground: it goes beyond [RFC 2487](https://tools.ietf.org/html/rfc2487) "old" (1999) recommandation and abides by the "newest" (2018) [RFC 8314](https://tools.ietf.org/html/rfc8314), under the assumption that most MUA (clients) nowadays support TLS; while still supporting unencrypted exchange on port 25. Eventually, it is up to you deciding exactly what kind of transportation encryption to use and/or enforce, and to customize your instance accordingly (looser or stricter security); with the help of the project's documentation.
We believe docker-mailserver's default configuration (enforcing TLS, either opportunistic or implicit) to be a good middle ground: it goes slightly beyond [RFC 2487](https://tools.ietf.org/html/rfc2487) "old" (1999) recommandation and, through configuration, makes it pretty easy to abide by the "newest" (2018) [RFC 8314](https://tools.ietf.org/html/rfc8314), under the assumption that most MUA (clients) nowadays support TLS. Eventually, it is up to you deciding exactly what kind of transportation encryption to use and/or enforce, and to customize your instance accordingly (looser or stricter security); with the help of the project's documentation.
The [README](https://github.com/tomav/docker-mailserver) is the best starting point in configuring and running your mail server. You may then explore this wiki to cover additional topics, including but not limited to, security.