Level 1

18 points

High Sierra and MS Exchange Problems anyone?

After 2 days the Apple mail app under High Sierra stopped working with Microsoft Exchange. New emails are not displayed. After removing the Exchange account, and setting up again, still no folders or mails can be received. The account (under email--->settings) definitely has connection to the exchange server (btw: Exchange 2010 on SBS), there's the "green" light. When setting up the new exchange account I noticed that this is handled differently to former versions of MacOS. There's no possibility to enter a "server", although in mail-settings-accounts the "internal and external URL" can be configured...but this changes nothing. Also (when having no server certificate) in former versions there was the small "warning triangle" beside the exchange account in the "tree" which could be clicked and the missing certificate could be ignored. Not so in High Sierra. Anyone with similar problems? Solution? thx

Posted on Sep 29, 2017 1:08 PM

Top-ranking reply

dianeoforegon

Level 5

7,305 points

Posted on Dec 5, 2017 5:23 PM

Let's clear up some confusion. I think I misunderstood when you wrote the following.

Exchange mail from Outlook in my Apple mail

You are not using Outlook.app but Mail.app to connect to your Exchange account. Both apps can connect to multiple types of email accounts. Exchange, IMAP and POP. What the window users in your company use to get Exchange has nothing to what you use on your Mac. What matters is the version of Exchange server.

Apple Mail can connect to Exchange as long as it meets one of these requirements.

Exchange Support

Requires Microsoft Office 365, Exchange 2016, Exchange 2013, or Exchange Server 2010 (SP2 or higher).

Try this to fix your Exchange account.

Remove the Exchange account in Mail > Preferences > Accounts.

This takes you to System Preferences > Internet Accounts.

Uncheck to remove the account. Not just uncheck Mail for Exchange.

In your User's Library/Mail folder....

Verify the Exchange data was removed when you removed the account.
Go to your User's Library > Mail > V5
You'll see alphanumeric folders, look inside. If you see the Outbox, this is the local "On My Mac" folders.
We don't want to find a folder for Exchange. Check to verify that is was removed. If you find the folder, then with Mail quit, delete the alphanumeric folder containing your Exchange data.
Clutter is a default Exchange folder, Exchange also has it's own Outbox. This shows Exchange account (the alphanumeric numbers are unique). You might also see custom folders you have created.

Next.... in V5 you should see a MailData folder. Delete any files with Envelope in the name.

Back in System Preferences > Internet Accounts

Add your Exchange account back.
Open Mail, It will reindex your messages.
Exchange will download again from the server.

My advice: When a new version of macOS is released DO NOT upgrade until it has matured. Unless there is some urgent need to upgrade then wait until the final version (.5 or .6) is released to upgrade. Lastly, check here in Apple Discussions to see if Exchange users are having any issues.

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58 replies

Dec 6, 2017 12:20 PM in response to VinceJacobs

Vince, rather than reply here, I'm replying in your post in order to keep answers specific to your situation.

Untill now, nothing has helped and Apple has not fixed this issue.

I think they are leaving all the people with Exchange 2010 and prior behind.

I as well as many other users use Apple Mail with Exchange with no issues. The issue you have is specific to your Mac.

Currently, Exchange 2010 is supported. Considering that it's 7 yrs old, you can't expect it to be supported forever in newer macOSes. At some point you will have to stop upgrading your macOS to a newer version if you want to continue to connect to old servers.

Some users have reported that the email app, Spark works with Exchange. Spark is in the App Store and is free.

More info: https://sparkmailapp.com/

ANN: High Sierra 10.13.2 was released today. I urge everyone to update.

leventv

Level 1

9 points

Dec 7, 2017 1:56 AM in response to dzadro

I am glad it is working for you. But there are lots of us for whom it does not work. There sure is a bug after High Sierra. I have the same server configuration as you do. Exchange 2010 SP3. But it still is not working as it is supposed to be. I can not get new email unless I restart the Mail app or rebuild the folder.

Also synchronization of the folders is not working unless I click on each folder.

tbeeze

Level 1

4 points

Feb 16, 2018 10:43 AM in response to PianoMax

I have had no Exchange email (Outlook) since installing High Sierra OS. However, my company just migrated to the new Office 365 and a new server, and Exchange now works great with High Sierra OS. I am once again receiving my Outlook email in my Apple mail with my other email accounts. Thank goodness!

PianoMax Author

Level 1

18 points

Oct 1, 2017 12:37 AM in response to dianeoforegon

...tried from both ways though I think you end in the same place. It seems definitely like an incompatibility issue because the connection with the exchange server is there (“green light“) but nothing is received. Our professional sysadmin reports similar cases, but has no clue as well.

PianoMax Author

Level 1

18 points

Oct 1, 2017 11:23 AM in response to dianeoforegon

Hi, unfortunately, even with an new user it doesn't work. The "certificate" window comes here but ever after confirming with password no folders or emails are loaded (no warning triangle also). Exchange Account is "green"=online.

Oct 10, 2017 11:20 PM in response to PianoMax

I only receive mail from Exchange the I restart Mail, it doesn't receive emails when I sync the exchange folder or click on the closed envelope. Changes to the certificate or allowing an unsecured connection does not solve the problem. has anyone a suggestion?

Oct 11, 2017 12:48 PM in response to dianeoforegon

Hi dianeoforegon,

I have Exchange through Office365 and have issues in Mail and on Office365.

It asks me for password of the 365account. but after insert of correct password, it tells me: "unable to verify account or password".

after trying closing and reopening Mail, the 365Inbox disappeared on top, where I see all my inboxes (gmail, .me, ...) displayed.

can you help me please?

thanks a lot

andrea

Oct 11, 2017 2:18 PM in response to andreacls

It asks me for password of the 365account. but after insert of correct password, it tells me: "unable to verify account or password".

You need to reset your password. At the login screen, select to reset password. If you have an IT admin, ask that your password auto reset after xx days is set to never.

You first have to be able to login to your O365 account to verify your Exchange account.

Oct 11, 2017 2:45 PM in response to tom_22

I haven't really researched this fully but I'm glad that you fixed it and you confirmed that is the case. I'm sure some type of authentication method has changed.

BTW - Outlook 2016 on the Mac will not connect to any exchange server that is less than Exchange 2010 SP2. This is where I first realized this minimum requirement.

Cheers

Nov 6, 2017 5:36 PM in response to PianoMax

We are on Exchange 2010. Mine connects and syncs mostly, but some messages aren't syncing and also all of my folders are showing up as "Inboxes", which means the Move function does not work properly.

Maybe not the same issue, but this is the only post I've found even remotely related and my issue started with the last 30 days or so.

Nov 7, 2017 10:28 AM in response to laurinkdavis

all of my folders are showing up as "Inboxes", which means the Move function does not work properly.

Could you post a screen shot of your folder list?

Command-Shift-3 takes the entire screen

Command-Shift-4 takes a portion of the screen. <--use this one

Click on the camera icon in the toolbar of the reply window to post. Select image to upload.

Be careful not to include any private information.

leventv

Level 1

9 points

Nov 10, 2017 4:54 AM in response to AkiraTheBad

Thank you very much for the detailed information. I checked the version is 10.13.1. I am using a MacBook Pro (Retina, 13-inch, Mid 2014). The strange thing is the issues are definitely present while using the Thunderbolt Ethernet Connection. When I use Wi-Fi for internet connection, everything seems to be working for a while. Inbox syncs, some of the Folders sync. But eventually it stops working again when I connect the ethernet connection. Then I would have to restart the Mail app to fetch new mail and click on each Folder to sync them every time I need synchronization or to check for new mail.

Nov 12, 2017 12:50 PM in response to Jane the Librarian

Looks like you'll need to keep the VPN connected. Looks like Microsoft is constantly trying to connect to it's server to validate activation.

When they first came out with activation, someone posted a pirated version that did not require activation. So much for Microsoft's efforts to stop pirated versions.

tbeeze

Level 1

4 points

Dec 5, 2017 8:16 PM in response to dianeoforegon

Thank you. Yes, clearing up confusion. When you said, you need to upgrade to the Office 2016 subscription I thought you meant a software subscription just like I subscribe to the Adobe Creative Suite online. I will definitely see if I can follow the instructions above. Obviously I'm not a technical wiz with any of this, but I will let you know what happens. Thanks again!

Dec 6, 2017 1:40 AM in response to PianoMax

I'm having a similar issue where I do not receive new incoming mails.

You can find the thread I started about this here.

Untill now, nothing has helped and Apple has not fixed this issue.

I think they are leaving all the people with Exchange 2010 and prior behind.

Can someone tell me if they have found a solution besides downloading another mail client?

Kind regards

Vince

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High Sierra and MS Exchange Problems anyone?