Hey.
I'm using Gmail to send email with node-red-node-email node.
For that I use port 465, but what does the "use secure connection" really means?
TLS has its own separate checkbox, that is unchecked. What does the checkbox for "use secure connection" do in this circumstance?
Hi - they are from the underlying nodeMailer library - SMTP transport :: Nodemailer
so secure should be ticked (true) if you want to use TLS... though even if not selected it will try to upgrade to TLS if the server supports STARTTLS (but the initial connection won't be secure).
All the other does is just control the rejectUnauthorized flag.