Hi, Currently my mail setup is using TLSv1 to connect to O365. Now that O365 has announced dropping their support for TLSv1, TLSv1.1, how to enable support for TLSv1.2 in postfix 2.8.2?
My openssl version is OpenSSL 1.0.1e-fips 11 Feb 2013 It should also support TLSv1, TLSv1.1 for older clients/servers but higher level should always be TLSv1.2 How to achieve this? I changed the below configs, smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3 smtpd_tls_protocols = !SSLv2, !SSLv3 But that doesn't work. Still the connection is established using TLSv1. Thank you.
