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Prior to this update, I had no issue with Outlook for Mac and Yahoo. I just updated to 16.73 (23051401). After updating, I had many problems with the Yahoo mail from within Outlook. It worked for the first 15 minutes, then got login errors and IMAP errors. I deleted the Yahoo account from Outlook and then quit. I then went back to Yahoo and got a new app password. I restarted Outlook and added the new app password obtained from Yahoo. It worked for the first 15 minutes then started to suddenly empty out all emails in all folders. Then the emails would eventually re-sync and reload from Yahoo. This now happens constantly. I tried the same uninstall reinstall process again, and nothing changed. Now also changes I make within Yahoo via my browser are not reflected in Outlook and changes made to Yahoo mail within Outlook are not saved when the emails clear, res-sync and reload, and they are not reflected in Yahoo online either. It's stuck in a loop. New emails DO ARRIVE and get added to the loop. Also there is a constant attempt to recreate the basic Yahoo folders: Drafts, Archive, Junk, Bulk. I get error messages saying can't be installed because they already exist - which they do! Why is it trying to reinstall them as if it is a new connection with Yahoo?
My setup is the following using OUTLOOK for MAC - BUT NOT NEW OUTLOOK. New Outlook does not support all the folders I have created over the years for organization and am unwilling to lose. I have a 16 inch MBPro M1 Max chip. Running Monterey 12.6.5.
AS a side note, I have for the past year or more had problems where white-listing emails does not work. Outlook is putting emails of people I email with regularly into SPAM. I whitelisted many of them, but Outlook is ignoring the classification and still putting those emails into SPAM.
Using older versions of Outlook for Mac in business environments
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
I believe the issues started with 16.73, so 16.71 should work - you'll need to turn off automatic updates or it will be reinstalled.
I get it with 16.66.2 as I am unable to update any further. So I have assumed from the begging that Yahoo changed something that Microsoft is trying to catch up with.
I'm using Outlook 16.16 and it's happening there too, so sad to say, I don't think a rollback to an older version will fix anything either.
Today (Sat, Jun 9), the situation seems especially bad. I've been leaving Outlook in "Work Offline" mode after very quick syncs with my Yahoo email, which successfully prevented the disappearing email issues for the most part. But today, I'm having disappearing emails from random folders every dang time I click out of "Work Offline." I'm currently resyncing a folder with almost 8,000 emails in it. When that's done, I'll check the folder that follows it and resync, wash, rinse, repeat.
Incredibly frustrating and a total waste of my time.
Yahoo did make some changes to the server around the same time as the 16.73 update, so its not Outlook at fault.