Hello. I am using a Note 8 and experiencing the same issue. Auto Fit can be toggled on or off to temporarily resolve the problem but it returns and I find myself going back to settings often. A real pain. Also this happens with any of my 3 email accounts. All 3 are on different servers. This did not happen on an S8 I had a few months ago. Strange!
Well here is a fix I found right here in this community . I just tried it and it works!!!
I received an email yesterday from the Samsung Email app developers. It is the most recent version of Google Chrome that is causing the issue. I didn't believe it until I followed the steps prescribed and my email was working!
Here is what you need to do:
Sorry for the inconvenience
You have an issue if you use Chrome v70 (updated), please use v.6x
we are preparing to make improvements for v70
Please refer below steps:
search google chrome
click three dots in upper right-hand corner
uncheck enable auto upgrade
“uninstall updates” in more option
We will release it asap