In typo3/fluid you can use the <f:debug> viewhelper to print out some or all available template variables. On a webpage template this is printed out at the top of the screen. But how to do this inside an email template?
I would expect an output of the <f:debug>-Viewhelper at some place. Maybe inside the email or somewhere in the typo3 log files.
<f:debug> has handy "inline" and "plainText" attributes, so you can actually inline the output at exactly the place where the viewhelper is placed. Try that one! :)
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