Send an email in either plain text or HTML format.
SMTP server settings must already have been specified by calling to net.setSmtpServerSettings.
Call net.setSmtpServerSettings to set SMTP details first.
Attachments are not supported. Custom Lua code is required for more complex implementations.
If an send error occours a message will be displayed in the output window.
Remember to check spam/junk folders on the receiving mail client.