MTA-STS¶
In the console: Settings › MTA › Inbound › MTA-STS
Tells other servers to always use encryption when they deliver to you, and to refuse if they can’t.
MTA-STS Policy¶
Policy Application¶
Whether to enforce, test, or disable the MTA-STS policy.
One of: Enforce (enforce), Testing (testing), Disabled (disable). Default: Testing. Name in the API: mode.
Max lifetime¶
Maximum time to cache the MTA-STS policy.
A length of time. Default: 7d. Name in the API: maxAge.
MX Patterns (override)¶
Override the allowed MX hosts for the MTA-STS policy domain. If empty, the MX hosts are determined from the system settings.
A list. Each one: text. Name in the API: mxHosts.