Hi Colin,
I am Sumit, an Independent Advisor and a 3 year Windows Insider MVP here to help.
That has been reported by many. Some people claim that the issue is fixed in ver 2004 but there has been a variation in that too.
There is a workaround given here:
https://answers.microsoft.com/en-us/windows/for...
workaround solution by Praful K found on Feedback Hub:
- Go to gmail.com and logon
- Click "Settings", top right
- Click "Filters and blocked addresses"
- Click "Create a new filter"
- Put your email address into the "From" field
- Click "Create filter"
- On the next page, select "Never send it to Spam"
- Click "Create filter"
This stops sent mail going to Spam, but unfortunately creates 2 sent items in Windows Mail. Good temporary fix though.