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Re:STARTTLS Everywhere by Boulth on Tuesday June 26, 2018 @01:52AM (#17398193)
Yep, Google.com has the record too but I haven't seen them scanning my mta sts file...
Re:STARTTLS Everywhere by mike-cardwell on Tuesday June 26, 2018 @04:42AM (#17398842)
You need to have a correctly formatted DNS TXT record at _mta-sts.example.com first. They'll check for that, and only if it exists will they bother attempting to fetch your mta-sts policy from https://mta-sts.example.com/.well-known/mta-sts.txt