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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 had the same issue of constant reloading of emails from Yahoo. It began to occur after I reused a third party app password for Yahoo on more than one computer. Try deleting recent third party app passwords and create new ones for each computer and each app.
Hope this helps.
I have found a workaround for this problem, at least for me. It's not perfect, but it seems to work. I find that the problem of Outlook deleting all inbox items and then trying to rebuild it seems to happen only after deleting items from the inbox using Outlook. For the last two months or so, I have been keeping my email open in the mail server's web browser as well as in Outlook, but only deleting items from the web browser. Outlook soon syncs the inbox from the mail server into Outlook with no issues. Doing so seems to solve the problem 99% of the time. It's a pain in the butt, but it seems to work. I prefer to use Outlook for composing emails because of the richness of formatting allowed, most notably, insertion of tables into emails. Can't do that with the web browser version.
I am having the same problem. Outlook for Mac is duplicating each folder 3 times. This is only happening in Outlook for Mac. On Yahoo on the web there is no duplication of folders.
If I try to delete the folders on Outlook for Mac I can only delete one of the three. The other two cannot be deleted as the delete choice is greyed out.
Has anyone found a solution?
I am using outlook for Mac 16.78.3 Legacy version. Mac OS is Sonoma 14.1.1
I posted months ago concerning this issue. I've moved on by moving anything which uses my bellsouth.net (yahoo) email over to a gmail account. I'm not upgrading to the "New" Outlook. This is not the option for everyone but for now this works for me. Since my original post I've met several people who are not tech savvy with AOL and Yahoo accounts who have experience lost emails, email send and receive issue who have no idea what is happening and why. I still use the bellsouth accounts via the Yahoo web mail, but soon will be discarding them, still get so important emails but also get nearly 99% junk. Can't wait to cancel Yahoo. Even Yahoo's web mail service is awkward.
About alternatives: I am using Spark at the moment and quite enjoying it. It's not Outlook but it works better than the New Outlook. I put emails in folders, a lot, and the shift/cmd/m works very well, even making accurate suggestions to which folder the email might need to go. Its a new email client and is still evolving. I just use the free version and I have had great response from their support about my questions and they have a user wish list going which I am hoping will shape the software further.