Rated 5 out of 5 stars

Up until v2.2.1, I was able to open eml files and use PrintingTools NG to fine tune my printing. In v2.2.2, the PrintingTools NG option is not available for eml files.

Αυτή η αξιολόγηση γράφτηκε για παλιότερη έκδοση του πρόσθετου (2.2.2). 

Thanks for the review, sorry for the issue.
I have beta I am working on. You can track it in the code issues / repository .
Should be able to get into the next beta.
https://github.com/cleidigh/printing-tools-ng/issues

Christopher