I had been using Outlook on my Samsung Tab S at Android 6 for years. A recent update has changed things though. I use Outlook to service both my live and Gmail accounts. The live account had always been default for new emails. Now, all of a sudden the Gmail account is default.
I went through this on my phone and uninstalling Outlook and reinstalling with just live account set things up so that when I added my Gmail account, the live account was still default for new emails and contacts.
Note:. I can now longer get to my Outlook contacts either. I had deleted the Exchange account as the Android 9 on my phone doesn't need it. Now I can't add it back.
Please help.
Dan