VPOP3.SendMessage

The Lua function 'VPOP3.SendMessage' sends a text email message

It takes four parameters:

1. The email address of the sender
2. The email address of the recipient
3. The subject line
4. The message body

The function returns one value:

1. boolean - 'true' if the message was sent

Note that this function can only send plain text emails, not HTML messages