My server is unable to send mail to a particular remote SMTP server - mail bounces back with 'TLS connection failed' ("(error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol)"). I suspect the remote server is advertising that it supports SSL when in fact it doesn't (my server can use SSL when communicating with other SMTP servers fine). Is there a way to stop qmail-send from attempting to use TLS when talking to this host? I may even have to go down the route of disabling TLS completely, but can't find a way to do that. Any thoughts please?