After update to 16.73 Outlook for Mac, Yahoo mail keeps re-syncing and reloading. Changes made in Outlook AND Yahoo are not syncing.

I have the same question as well.

I use bel south.net/yahoo and tried the New Outlook with Microsoft Cloud Sync.

I did not choose the IMAP option.

The good news is that the emails and folders have been stable.

The bad news I that I no longer have the ability to use and setup rules... I presume that this is because it is not supported by Microsoft Sync?

I am going to try to redo New Outlook with IMAP and see what happens.

If it is as Lee describes, New Outlook may not work properly with Yahoo IMAP and it may be back to the drawing board again.

This afternoon I was able to pull up "Contact Support" under HELP and write on Chat what amounted to almost a dissertation on the failures of the latest version of Outlook for Mac. Someone finally answered and suggested he could only help my issues if I switched to the "new" Outlook. Well...that was a mess! I couldn't find how to change the layout .It told me to sign int my account again. Guess what? I ran into the "don't recognize password" again! Why change to a new program and battle the same old problems? Then support person disappeared. Needless to say, I am spitting nails(: I don't need the frustration of learning my way around the new version. I hope I can get it back to the Legacy version.

Those of you who have switched to Apple Mail, did you have problems with your servers? I've been getting my email thru ATT for years,using IMAP Did you have problems finding a server?

FYI. I switched again to New Outlook using IMAP instead of Microsoft Sync.

Yes, it is stable and the folders work properly.

However, Rules are still not supported in either IMAP or MS Sync. They worked perfectly in Legacy Outlook.

So now it's back to the drawing board and waiting for Microsoft to either fix the issue in Legacy Outlook our at least provide the Rules feature in New Outlook.

I don't use Rules, but I knew I saw mention of them somewhere in Outlook, so I went looking. (I found them under the Message tab, for those who may not know.) I checked, and it says rules aren't supported for my sbcglobal.net (Yahoo) account, however, they ARE supported for my Exchange account.

I gave up and switched to Apple Mail yesterday for my AOL and Yahoo accounts. When you set up the account in Mail it asks if it is an iCloud, Exchange, Google, Yahoo or AOL account. It is pretty much automatic and just a matter of signing in to set it up from there. I did need to go create an app-specific password in Yahoo and AOL's security settings to use with Mail for both accounts. I left my Exchange account in New Outlook as it seems to work fine. I may move it to Mail eventually, but since it is for work and not personal, I don't check it a lot from home anyway. My Yahoo account went seamlessly. The AOL account said it wasn't connected, but ironically downloaded all my messages/folders anyway. Once I quit Mail and started it back up it said it was connected and everything seemed to be working fine. It was amazing how fast all my mail/subfolders populated in Mail. Almost instantaneous. Compared to it taking all day Saturday and a lot of Sunday when I tried to load them into New Outlook, and I had to click on each folder individually and wait for it to load the contents. I'm glad some of you are having luck with the New Outlook, but that doesn't seem to be the case for me. Maybe I need to apply the latest patch and see if that resolves the syncing issue? I think I am one step behind the update that came out last week. I may give that a try this evening.