Hi 2018年10月24日(水) 20:28 Burn Zero <burnze...@gmail.com>:
> Yea, I got it. But even with that configuration when I connect to my server, > my server is still accepting connections in TLSv1. If I disable TLSv1 in my > server, > > warning: TLS library problem: 21975:error:140760FC:SSL > routines:SSL23_GET_CLIENT_HELLO:unknown protocol:s23_srvr.c:578: > > On Wed, Oct 24, 2018 at 4:45 PM Petri Riihikallio > <petri.riihikal...@metis.fi> wrote: >> >> >> > smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3 >> > smtpd_tls_protocols = !SSLv2, !SSLv3 >> > >> > But that doesn't work. Still the connection is established using TLSv1. >> >> Those are for smtpd or inbound connections. For outbound to O365 you need to >> look at smtp_ settings. Is network ok? : client <-> postfix <-> o365 s23_srvr.c said error message, so Is postfix working as a server? Is the problem occurring in 'client <-> postfix' communication? -- miwarin
