Outlook for Android is sending notifications for old emails.

Fingers crossed it fixes it for you! Please do let us know. Unfortunately my imap is a work email account so I cant try removing it for a while. I only have my personal hotmail email and one imap account.

They are telling me it is a known issue with IMAP accounts the technicians are working on it with no ETA. But clearly, it's been going on for years. I have had this issue for at least 1 year and on 2 different devices. Most issues occur going from WIFI to Data ie leaving me house I get up the road and get a whole bunch of email notifications. But it also happens randomly throughout the day, or not for a few days. Then all day. its ridiculous

I think your post saying the issue is with IMAP accounts has fixed the issue for me after several months of trying!

I had 5 Gmail accounts an exchange account and 1 IMAP ISP account on Outlook for Android and I would get repeat email notifications seconds after reading them.

After removing the 1 ISP IMAP account I haven't seen the issue again, I will report back if it returns.

They are telling me it is a known issue with IMAP accounts the technicians are working on it with no ETA. But clearly, it's been going on for years. I have had this issue for at least 1 year and on 2 different devices. Most issues occur going from WIFI to Data ie leaving me house I get up the road and get a whole bunch of email notifications. But it also happens randomly throughout the day, or not for a few days. Then all day. its ridiculous

This is such a typical useless Microsoft reply. I particularly love the "try it on another android device." Yes, I will just use my other phone I don't have to check to see if it works. Seriously Microsoft? I really hope your monopoly on operating systems and office software end soon so we can actually have an option with a company that care more about its customers than throwing broken software against the wall to see what sticks.