After a recent Ubuntu server upgrade, the packaged versions of Postfix -
using Ubuntu's "Precise" version, as well as the "security", "updates",
and "backports" repositories - Postfix's TLS is broken with the known
SSL version issue:
warning: TLS library problem: 4425:error:1408F10B:SSL
routines:SSL3_GET_RECORD:wrong version number:s3_pkt.c:340:
I've tried a couple different main.cf settings, including:
smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3
but the only option that has given me temporary functionality is:
smtpd_tls_security_level=none
Is there a way I can restore TLS functionality via configuration? Or is
an updated Postfix, possibly a self-compiled version, my only option?
--
Daniel
