I don’t think this is a font issue, rather a zoom issue, but correct me if I am wrong.
It seems I need to hit control zero frequently when I open up emails. Is there a setting which is hidden or not obvious where I can change the default zoom level?
Right-click in the message body and choose Zoom > Original.
Will that change all messages from now on or just for that message? Because it seems like Zoom>Original is for individual messages?
No, it is a global setting.
Restart eM Client, open a single message, apply the Zoom level, close the message. Open a second message and the Zoom level will be the same.
eM Client decided to change the zoom setting again on it’s own. How frustrating.