MTA-STS (Strict Transport Security)
MTA-STS (Mail Transfer Agent-Strict Transport Security, STS for short) is a fairly new tool for making sending and receiving mail more secure. MTA-STS has now been adopted as RFC-8461 and can therefore be used. Similar to DANE, information is stored in the DNS for STS. The big difference, however, is that STS does not require DNSSEC ... Read more
