diff -r typo3_src-7.6.9_orig/typo3/sysext/form/Resources/Private/Partials/Compatibility/PostProcessor/Mail/Html/FlatElements/Checkbox.html typo3_src-7.6.9/typo3/sysext/form/Resources/Private/Partials/Compatibility/PostProcessor/Mail/Html/FlatElements/Checkbox.html
4c4,5
< 		<f:format.raw>{model.layout.elementOuterWrap.1}</f:format.raw>
---
>             {model.additionalArguments.label}
> 	 	<f:format.raw>{model.layout.elementOuterWrap.1}</f:format.raw>
6c7
< </f:if>
\ No newline at end of file
---
> </f:if>