Use either shift key to boot into Safe Mode. You can release the Shift key when the login window appears on the screen. You need to press the key while your Mac is starting up. To enter Safe Mode on an Intel-powered Mac, restart your computer and then hold the Shift key. The tool runs a quick checkup of your disk, deleting unnecessary system caches and files. There’s another major advantage to using Safe Mode. If this problem is caused by other programs that load when you boot up your Mac, it should be gone in Safe Mode. Use this method as well, and check if Apple Mail is catching up. Other users said they deleted all of their MailData items for Exchange and moved their messages in OWA or Outlook. If the issue persists, navigate to ~/Library/Mail and delete the Exchange folders (that should be the V7 or V8 folder). Deleting and setting up your Exchange account helps you refresh your connection to the servers. Microsoft regularly pushes behind-the-scenes Exchange updates and patches which can disrupt the sync process. Keep in mind that the email sync process does not just depend on your iOS or macOS devices, it also depends on the Exchange server itself. Select Microsoft Exchange from the list of email providers and follow the on-screen instructions to complete the process.Then launch the app again, click on the Mail menu and select Add account.Close the Mail App and restart your Mac.Select your Exchange account and hit the Remove button.Launch Apple Mail, click on the Mail menu and go to Accounts.It seems that something’s changed in the authentication process and resetting the account fixes the problem. Many users confirmed that deleting and setting up their Exchange account did the trick. Additionally, do clean up your mail box and archive older mails locally.

If this is only a bug in the iOS or macOS update package, restarting all of your devices could fix the problem. Turn off all of your iOS and iPad devices and check if your Exchange account works as intended on your Mac. Oftentimes, incoming Exchange emails appear correctly on iOS devices. Restart your Mac and check if the sync issue persists.Ĭheck if the sync glitch affects your Exchange account on iOS devices as well. If you use other Microsoft apps on your Mac, check for updates and ensure they’re up to date as well. What to Do if Apple Mail Won’t Sync With Exchange Update Mail App and Switch Off iOS Devices

Let’s see what solutions you can use to troubleshoot this problem. What’s even more confusing is that Mail shows Exchange is online and enabled, but the Exchange account log is empty. But sometimes, even a whole week can go by until Mac Mail syncs with Exchange. If you’re lucky, the two email platforms may sync every two or three few days. Apple Mail may sometimes refuse to sync with Exchange.

Mac mail exchange support