I have looked at what changed in new html exporter, it exports overlapping components too.
The html output honestly became much more complicated. And it generates much more layers than needed.
-Use a subreport, and a frame in subreport. (really basic content)
It generates two div, one dummy, one with content. (while there is no overlapping actually)
And the thing with DIVs, outlook uses a messy html rendering engine (WORD)
It doesnt render DIVs correctly, so any HTML report embedded into email body with new exporter cant be rendered correctly.
(And also old exporter needs a few changes to do so)
I know email rendering issue is not your first concern and it is really messy but I think we are not the only people who use JR reports in email.
If there is an option not to use DIVs in the new exporter, it would be really good.
And I hope you are not planning to take out giving support for old html exporter (JRHtmlExporter)
Is it remotely possible to tweak exporters compatible with outlook? :)
(or another exporter? :))