Using outbound Node-RED email to local SMTP server - smtp

Question

I have a local SMTP email server I use for testing purposes running on my machine. It listens for SMTP on port 25. I am able to send and receive emails to it using a regular email client.
When I build a Node-RED flow that contains an e-mail output node and configure its properties with:
to: <email address>
server: localhost
port: 25
and submit a flow, I get the error:
25 Feb 16:43:24 - [error] [e-mail:<email address>] Error: 101057795:error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol:openssl\ssl\s23_clnt.c:794:
I am at a loss on how to proceed. Looking at the messages, it almost appears that there is some form of SSL negotiation/test at play here. Switching on trace on my SMTP server, I find the following logs each time I try and run a flow:
"TCPIP" 10708 "2016-02-25 16:43:08.294" "TCP - 127.0.0.1 connected to 127.0.0.1:25."
"DEBUG" 10708 "2016-02-25 16:43:08.298" "Creating session 22"
"SMTPD" 10708 22 "2016-02-25 16:43:08.298" "127.0.0.1" "SENT: 220 WIN7-X64 ESMTP"
"DEBUG" 9772 "2016-02-25 16:43:08.299" "Ending session 22"
It appears that the Node-RED node is sending a connection request, getting back the SMTP 220 response and then failing immediately after that.

Answer 1

I came across the same problem and have a nasty hack that will enable mail to go via my local exchange server's plain SMTP, with no auth.
Edit the .../61-email.js file and change it thusly:
var smtpTransport = nodemailer.createTransport({
host: node.outserver,
port: node.outport,
secure: false,
ignoreTLS: true //,
// auth: {
// user: node.userid,
// pass: node.password
// }
});

Answer 2

I see Dave has replied to the github issue but just to close the loop on this question.
At this time (Feb 2016) the node assumes SSL is always available and enabled, at some point we need to go back to the email node and find a simple way to expose a lot more of the nodemailer options to allow connections to a wider range of email providers both public and private.