files/etc/postfix/tls_policy


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# WARN: smtp_tls_fingerprint_digest MUST be sha256!
[smtp.guilhem.org]:587 fingerprint ciphers=high protocols=!SSLv2:!SSLv3:!TLSv1:!TLSv1.1:!TLSv1.2
    match=B2:37:09:EC:B9:54:DC:51:FA:77:A1:31:0D:30:06:84:7E:10:81:5B:9B:30:B0:31:6E:9A:7B:53:13:C8:37:62