Level 1

20 points

Mail issues MS Exchange in Apple Mail / macOS Big Sur 11.0.1

Hi all,

I'm experiencing (Apple) mail issues while retrieving MS Exchange account, using macOS Big Sur (v 11.0.1): mail is not visible in my (all) inbox(es), but on iPad/iPhone it works fine.

When I rebuild the mailboxes the 'missing' mail becomes visible. But... I have to do the same thing (rebuild) over and over again :(

Anyone got a clue? Or experiencing the same problems?

Love to hear!

(Specs: MacBook Pro Mid 2015, Big Sur 11.0., Mail version 14.0 (3654.20.0.2.21)

Posted on Nov 23, 2020 5:12 AM

Top-ranking reply

Thomas_UniTS

Level 1

4 points

Posted on Feb 19, 2021 1:56 AM

Found a solution - at least for me - to the Mac Mail App sync issue with Office 365 exchange mail server. Quite the Mail App. From the Finder, "Go" in ~/Library/Mail/V8/MailData. Once there, move out of the folder (I just moved to the Desktop) the file "Envelope Index". Afterward, re-open the Mail App. The file will then automatically re-created. After the end of this re-creation, everything worked fine. It seems to be related (I'm not an expert, though) to the corruption of index files in Local Folders. It may take a while if you have many messages in your Local Folders (more than 16 Million in my case and it took about one hour). Hope this helps

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43 replies

mbgonzo

Level 1

4 points

Jan 21, 2021 10:39 AM in response to BoonVivant

I'm having the exact same issue with Big Sur 11.1, has there been any update?

Specs: MacBook Pro 13-inch, 2019, Big Sur 11.1, Mail Version 14.0 (3654.40.0.2.32)

Jan 28, 2021 7:43 AM in response to AppleMartini74

There must have been an update that broke this. I think up until Tuesday 1/26 I had no issues. No problem with my laptop on Mojave.

Jan 28, 2021 10:58 AM in response to nameforapple

Rebuilding did nothing in my case, an the issue is only with me exchange

dahubby

Level 1

4 points

Jan 28, 2021 2:24 PM in response to BoonVivant

Same issue on 11.1 working fine in iOS. PLEASE fix this Apple.

Feb 1, 2021 12:30 PM in response to BoonVivant

Magically working for me today. Unfortunately can't search inside of Mail still.

Feb 1, 2021 1:16 PM in response to Philip Ohler

Same for me, works much better today. Haven't explored search but the inbox is updating in real time again.

dahubby

Level 1

4 points

Feb 1, 2021 2:19 PM in response to djstoopid

Thought 11.2 update would fix it. Nope. maybe 12?

Feb 12, 2021 6:19 AM in response to BoonVivant

macOS Big Sur V 11.2.1, after the update a few days ago the issue of replied emails not synchronizing in other devices continues. Somehow the flags are working.

huntan1

Level 1

12 points

Feb 25, 2021 9:12 AM in response to Thomas_UniTS

This appeared to help. Then didn't. @Apple this is INSANE!!!! This is making me want to return to Microsoft!!!! Which should tell you I AM ******!!!!!

Mar 25, 2021 5:52 PM in response to AppleMartini74

I tried this. But my issues are still there. Thanks for sharing anyway.

jruete

Level 1

8 points

May 12, 2021 6:59 AM in response to BoonVivant

Same issue on MacOS Big Sur 11.3.1... Mail app loses synch properties from Exchange while sync does work on iOS (iphone and ipad) and also synchs gmail accounts properly

May 20, 2021 8:03 AM in response to kittyplay

That's what I did, and so far, so good ! I posted it on April 23rd.

huntan1

Level 1

12 points

Feb 15, 2021 8:38 AM in response to ejb60

I deleted my account from Apple mail several times and NOTHING! I finally found where the INCOMING and OUTGOING servers showed OFF. I then deleted and reset up my exchange mail but clicking "configure manually", sign in and everything seems to be loading. If this works then it is something to do with the external HTTP for Office 365.

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Mail issues MS Exchange in Apple Mail / macOS Big Sur 11.0.1