Hi, on ubuntu lucid openssl is 0.9x with self compiled postfix 2.11
and smtpd tls log level 1 a warning apear like warning: TLS library problem: error:1409442E:SSL routines:SSL3_READ_BYTES:tlsv1 alert protocol version:s3_pkt.c:1099:SSL alert number 70: with i.e test openssl s_client -connect mail01.example.com:25 -starttls smtp -tls1_2 -CApath /etc/ssl/ this can not be avoided with i.e smtpd_tls_protocols = !SSLv2, !SSLv3, !TLSv1_1, !TLSv1_2 cause tls will get disabled warning: Invalid TLS protocol list "TLSv1, !SSLv2, !SSLv3, !TLSv1_1, !TLSv1_2": disabling TLS support speculate TLSv1_1 TLSv1_2 are not known cause of openssl vers 0.9.x am i right ?, Best practice ignore warning ? Best Regards MfG Robert Schetterer -- [*] sys4 AG http://sys4.de, +49 (89) 30 90 46 64 Franziskanerstraße 15, 81669 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein
