I have two email services: RoadRunner (main source) and Outlook.com (for syncing)
RoadRunner (RR) shows folders: Sent Items, Sent Messages, and Sent Mail
Sent Items stopped receiving items about 11/13
Sent Messages has a few random outgoing mails up to two weeks ago
Sent Mail is empty
I have four systems with Outlook 2016. Each Outlook installation has more than 5 active email accounts--mostly the same. Where possible, I have the accounts setup as IMAP. None of the email accounts on the four systems display a "Sent Items" folder; they do have other versions such as "Sent,"...