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Py-postfix-mta-sts-resolver

Jul 20, 2023

TLS client policy for Postfix according to domain MTA-STS policy

Daemon which provides TLS client policy for Postfix via socketmap, according to domain MTA-STS policy. Current support of RFC8461 is limited - daemon lacks some minor features

  • Proactive policy fetch
  • Fetch error reporting
  • Fetch ratelimit but actual fetch rate partially restricted with cache_grace config option.

Server has configurable cache backend which allows to store cached STS policies in memory internal, file sqlite or in Redis database redis.

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