XF 2.3 Email template font size became too big

[JasonBrody]

Hey Guys,
So one of my buddy recently upgraded his XF to 2.3 while using UI.X theme (I am using the same theme too), but his email template font size became very big



I checked for outdated template etc, but couldn't figure out how to solve it/

 

[Paul B]

So one of my buddy recently upgraded his XF to 2.3

It would be best if they posted themselves so we can confirm they are licensed.