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Detect or/and enforce SSL/STARTTLS

Question asked by Pawel Rzepa on Aug 31, 2017
Latest reply on Sep 5, 2017 by Pawel Rzepa
Branched to a new discussion



I'd like to detect and/or enforce that people use encryption when they pass data between systems. For example people say that for SMTP, tcp/25, they use STARTTLS. Is there any way to verify/enforce that STARTTLS is in fact used? I don't want to inspect the content of encrypted traffic, just want to ensure that people encrypt data.

The same question is about STARTTLS for LDAP on tcp/389 or detecting/enforcing the use of HTTPS on non-standard ports.