$sudo vi /etc/stunnel/stunnel.conf
cert=/etc/stunnel/mail.pem
line to
cert=/etc/stunnel/stunnel.pem
.
; Certificate/key is needed in server mode cert = /etc/stunnel/stunnel.pem key = /etc/stunnel/stunnel.pem ; Some debugging stuff useful for troubleshooting debug = 7 foreground=yes [ssyslog] accept = 60514 connect = 61514