To send email, use cfmail tag making sure you set asyc=false (see below). Not setting this flag to false may result in undelivered email because mail may still exist in Lucee spooler (Lucee tasks) when your task runner exits.
If you cannot connect to a SMTP server that requires SSL or TLS, like , one workaround is to install a local SMTP server and configure it as a relay to your SMTP server. This has been done successfully on Windows servers using (free, opensource), which is fairly easy to install and configure as an SMTP relay.