I have the same problem as kakingsbury. THIS IS A SUDDEN PROBLEM WITH VERIZON EMAIL. PLEASE SEND A FIX TO YOUR USERS, VERIZON!
Recipients of my email (browser is Chrome) cannot read it because though I send it in 12 font, they receive it in "too small to read" font even when I change the size to 16. Tried changing from RTF to plain text but since the New Verizon email does not allow email in plain text it automatically adjusts back to RTF.
Tried changing the settings in Chrome Advanced settings then logging out and closing browser. Seems to work. Not sure if recipients will be able to read it.