Level 1

22 points

Exchange mail not incoming in Mail

Since I updated my MacBook Pro to macOS High Sierra, my Mail app has been acting strange.

At first it synced all my mails (through an iCloud, a Gmail as well as an Exchange account), but today I've not received any more mails on my Exchange account. I'm receiving the mails on my iPhone, so I know it's not the server or anything. Mails are coming in on the other accounts though.

I've tried disabling the Exchange account, removing and re-adding it as well as testing if it sends/receives. When I tried to send a mail from the account to myself (same e-mail address), the app crashed and started looping as in starting with a new message window, crashing again, opening,...

I really don't know what to do because macOS High Sierra is brand new and I can't find anything on the same issue.

If you know a solution, feel free to post it here.

Thanks in advance!

Greetings

Vince

MacBook Pro (Retina, 15-inch, Mid 2015), macOS High Sierra (10.13)

Posted on Sep 26, 2017 9:51 AM

Top-ranking reply

dianeoforegon

Level 5

7,305 points

Posted on Sep 26, 2017 5:41 PM

When you delete the account in System Preferences > Internet Accounts, you need to verify in your User's Library/Mail/V5 folder that the alphanumeric folder that contains your Exchange account was actually removed.

Also in the User's Library, delete com.apple.mail folder in Containers.

Log out/in or Restart

Go to System Preferences > Internet Accounts and add the Exchange account back.

Does it work now?

View in context

53 replies

Dec 25, 2017 3:02 PM in response to Benny B

It worked for me. Thanks.

Jan 22, 2018 8:31 AM in response to Benny B

Thanks for the suggestion, I tried it but no go. My exchange account will not even look for new messages, which I know are there because I do continue to get them on my iPhone.

Jan 25, 2018 3:27 AM in response to Benny B

Thanks to Benny B the trick still works, but neither the last upgrade 10.13.3 change things, problem persist

PierG

Level 1

4 points

Feb 22, 2018 3:45 AM in response to jellikit

Same in my site!
SP3 was not installed, when the had everything started to work as due!

VinceJacobs Author

Level 1

22 points

Sep 28, 2017 8:38 AM in response to dianeoforegon

I tried your suggestion by making a new user account and adding the Exchange account.

Multiple times I tried to enter my credentials and go through the dialogue of creating such account, but it always gives me certificate-related notifications. I made sure to always trust them, but when I open the Mail app on the fresh user account, there is a triangle with an exclamation mark besides the name of the account folder. When clicked, it keeps telling me something about the certificate and I can click "details", "cancel" and "continue". All three options lead to the same result: nothing changes and I keep getting the certificate notification window.

On my proper account, the normal Mail app doesn't receive new emails when I'm at work (where the mail server is located) without forcefully closing and re-opening the app. At home, the Mail app doesn't even connect to the server so I don't receive my mails outside of work.

I installed an alternative application for my mails called "Spark", and with the same credentials etcetera I can now receive my mails again. It's a pity though that I have to download a third-party app to have a fully working mailing program. On macOS Sierra everything worked like a charm, but after the macOS High Sierra update everything about the Mail app started failing. Hopefully Apple fixes it as a whole, because I loved working with it.

Still, thanks for your input, and hoping there is a solution on the way!

Oct 10, 2017 2:02 PM in response to VinceJacobs

Mail and Exchange had been working for me on High Sierra, but today I started having an intermittent problem with incoming emails not coming through. The Activity Window shows that it's stuck on "Checking for Mail". Shutting down and restarting Mail causes all the backed-up income mail to come in, and then mail works for a little while before the problem recurs again.

VinceJacobs Author

Level 1

22 points

Dec 6, 2017 1:54 AM in response to lindel304

Hi Lindel

Thank you for your answer.

However, I experience the issue using the standard Mail app on macOS and not Outlook 2016.

I can not get my Exchange account to work with that version of Outlook because it always gives me the error message "Outlook can only connect with mailboxes running Exchange Server 2010 SP2 or higher" (or something like that, the error message was originally in Dutch), but it always worked with the standard Mail app on normal Sierra.

My guess is that Apple upgraded their security for the standard Mail app and doesn't include support for Exchange Servers below 2010 SP2 anymore, just like Outlook 2016. Somewhat of a stupid move, because a lot of people are using the mail servers they are given at work (just like me).

Kind regards

Vince

Holton

Level 1

4 points

Oct 31, 2017 12:23 PM in response to VinceJacobs

After the update today I am working again. 10.13.1

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Exchange mail not incoming in Mail