I am looking for the syntax to add node fields to the body of an email. Examples I looked at the documentation, and the format is [content_type:content_type_title].
However, my email arrives with just the string [content_type:content_type_title].
Even better would be a PHP snippet that loads the node and dumps filed title and filed value into the body of the message.
Rules supports the Token module, which should allow you to do something like that.