This repository exists solely to serve the MTA-STS policy for mgrealestate.eu via GitHub Pages.
MTA-STS (Mail Transfer Agent Strict Transport Security) is an email security standard defined in RFC 8461. It allows mail servers to declare that they support TLS encryption and that sending mail servers should refuse to deliver mail if a secure connection cannot be established.
GitHub Pages serves the MTA-STS policy file at the required URL:
https://mta-sts.mgrealestate.eu/.well-known/mta-sts.txt
The custom domain mta-sts.mgrealestate.eu points to this GitHub Pages site, making the policy accessible to external mail servers.
.well-known/mta-sts.txt — the MTA-STS policy fileCNAME.txt — contains the custom domain (mta-sts.mgrealestate.eu) used by GitHub Pages; rename to CNAME (no extension) to activate it_config.yml — Jekyll config to ensure the .well-known directory is includedThis repository should not be used for anything other than hosting the MTA-STS policy. Changes to the policy file may affect email delivery for mgrealestate.eu.