MTA-STS
MTA-STS Explained: HTTPS for Your Email
MTA-STS is like HTTPS for email in transit. Here is what it does and why it matters.
MTA-STS
MTA-STS is like HTTPS for email in transit. Here is what it does and why it matters.
Explainer
Most email travels encrypted - but only politely, and a criminal in the middle can ask both servers to drop the encryption. MTA-STS removes that option. Here is how it works, why the NCSC recommends it, and why starting in testing mode matters.
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