On Mon, Aug 03, 2015 at 03:37:15PM +0100, Always Learning wrote:
> 2015-08-01 16:38:58 TLS error on connection from flan.grepular.com
> [198.211.125.252]:38235 (SSL_accept): error:14094418:SSL
> routines:SSL3_READ_BYTES:tlsv1 alert unknown ca: 1 Time(s)
Consistent with the OPs report, his Exim SMTP client is terminating
the SSL handshake when the peer's certificate fails to verify (in
this case sending a fatal 'unknown ca' alert).
So something in the OPs configuration seems to be making TLS
authentication mandatory for various peers.
--
Vikor.