Windows 10 Pro x64, Mail app version 17.8021.42367.0
Starting today, the Mail app no longer automatically receives new email in the background, in any account. No email alerts show in the Action Center. If I leave the Mail running, then emails show up in the Action Center.
Syncing as new items arrive is enabled in all accounts. Alerts and banners from Mail are enabled in Action Center and Mail is enabled in Settings>System>Notifications and Actions and in Settings>Privacy>Email. Notifications and sound alerts are enabled for all accounts in Mail's settings.
I've been over the settings with a fine tooth comb and have rebooted the machine, to no avail. The only way to get Action Center email alerts is to keep the app running. I'd like to be able to have it work in the background, while closed, as it used to.
Thank you for any help.