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tweak security.md

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Joshua Tauberer 2015-07-09 13:30:25 -04:00
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@ -17,8 +17,11 @@ The primary goal of Mail-in-a-Box is to make deploying a good mail server easy,
On the other hand, we do assume that adversaries are performing passive surveillance and, possibly, active man-in-the-middle attacks. And so: On the other hand, we do assume that adversaries are performing passive surveillance and, possibly, active man-in-the-middle attacks. And so:
* User credentials are always sent through SSH/TLS, never in the clear. * User credentials are always sent through SSH/TLS, never in the clear, with modern TLS settings.
* Outbound mail is sent with the highest level of TLS possible (more on that below). * Outbound mail is sent with the highest level of TLS possible.
* The box advertises its support for [DANE TLSA](https://en.wikipedia.org/wiki/DNS-based_Authentication_of_Named_Entities), when DNSSEC is enabled at the domain name registrar, so that inbound mail is more likely to be transmitted securely.
Additional details follow.
User Credentials User Credentials
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