Mac OS Mail app not updating exchange

Chris Conroy wrote:

I use the Mail app on my Powerbook pro for most of my email. My work account is an exchange account.

After downloading messages, I delete them or move them to another mailbox.

If I check mail on my iphone, ipad or the web app for new mail, everything is there - as if it had never been downloaded and/or moved.

What can I do to get the mac os mail app to sync with the exchange server?

I’ve tried deleting the account and reinstalling and a few other tips I’ve seen online but none seem to work.

Thanks,

Chris

Have you searched Microsoft for Support/Help/FAQ/Known issues—

Microsoft support is very responsive and helpful.

https://support.microsoft.com

they is a robust community over there—Ask the Microsoft Community

https://answers.microsoft.com/

I have this issue also, with a new MacBook Air (M2). After restoring from a previous MacBook, it wasn't synchronizing. I also deleted the account and reconnected via Internet Accounts ("Microsoft Exchange->login->set email, contacts, etc.). I just get a welcome to Outlook mail and welcome to Hotmail from 2012. Nothing else.

I have my Exchange account from Godaddy. Since it works on my iPhone, iPad and via the Web, they can't help any more. They have referred me to IT consulting services who will help for a fee. Before I go that route, I'm going to see if Apple support can help. BTW: Messages is also not properly sync'ing.