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Sierra Mail does not sync with my Exchange server anymore.

Dear community.


After upgrading to macOS Sierra Mail doesn't sync with the Exchange server anymore, so I can't check my work emails. I have deleted and re-installed the exchange account, which didn't help with the problem.


At the same time, my iOS devices (iOS 10) keep syncing without any problems.


Anybody experiencing the same problem? Any solution?


Thanks, David

Posted on Sep 22, 2016 12:02 PM

Reply
73 replies

Oct 27, 2016 3:09 PM in response to ptouron

I am having the exact same issue at my work with my Exchange 2010 account. The 10.12.1 update made no difference. I tried removing the Envelope Index* and ExternalUpdates* from ~/Library/Mail/V4/MailData/ and it made no difference.


Do you know what version of Exchange 2010 your server is? Ours is Exchange 2010 SP3 RU6 (14.3.195.4001) and I wonder if a newer build (RU15) would work better....

Nov 22, 2016 2:18 AM in response to david.sinning

Hello again, I have been a part of Spark preproduction testing program and Spark works as expected. I have two screens and two app (Mail / Spark) connected to the Exchange account and the result is easy. Spark works perfectly Mail.app is not updating emails, no possible to obtain exchange messages...



Hello Apple, could you please do repair with mail.app?


SPARK %CPU 8% 16 thads. 231MB RAM

MAIL.APP %CPU 107% 16 thads. 897MB RAM

Sierra Mail does not sync with my Exchange server anymore.

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