The Site resource file had the old text. I don't see anything changed on there that I would have related to email. However, I am sure I changed other text values in the past.

I wonder if this means that won't get updated with changes made by DNN in new releases???

Yes they should be kept however as you can tell this is a major issue. I spent 8 hours on just this issue. There is no way to know if this has happened before or will happen again.

Ideally what would happen is a comparison would be made between the default value and the current value as to if an upgrade should modify the resource value even for modified files.

I would think this particular issue would affect thousands of installs.

 

If I click Delete (File) that will go back to the default settings then right?