On Wednesday, 17 April 2019 19:03:26 CEST Boyuan Yang wrote: > I found that this will happen when I set the default font to be Noto Sans > CJK SC with arbitary font weight. By resetting the font to default, the > email viewer would recover back to normal however the composer is always > missing spaces no matter how I set up the fonts. What locale are you using ? Could you try with "LC_ALL=C evolution" ? All the best Dod