Burn Zero skrev den 2018-10-24 13:26:
warning: TLS library problem: 21975:error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol:s23_srvr.c:578:
its not a postfix question what is supported in openssl ssl is not tls do not disable tlsv1 if more help is needed show logs of smtp, not smtpd sslv2 and sslv3 can be disabled in openssl in compile time