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Mail refuses to load on M1 Mac

I'm on my second M1 Macbook Pro. Both have had endless problems with Mac Mail refusing to open, or taking 20+ minutes to open from a re-boot (while showing "application not responding".)

Booting in Safe mode helps, but that's not practical as a daily activity, and having no access to Mac Mail on Macbook is a pain.

Mail works fine on my iPad and iPhone, and is fully functioning on the Macbook if/when it finally launches.


MacBook Pro Apple Silicon

Posted on Sep 28, 2022 9:49 PM

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Question marked as Top-ranking reply

Posted on Sep 29, 2022 2:26 AM

Any Third Party Applications that will interfere with the normal operation of the OS,  is an invitation for disaster and comprising the Operating System


Certain Applications maybe available on the Apple Apps Store - this only means the Developer is prepared to pay Apple a portion on each sale. What the Application may do to the computer is up to the User to check this out before purchase


Any of the below should be removed as per Developers Instructions


Below List is only a Partial List. There are more un-named " Bad Actor " Software out there which I add as they appear on these Forums


This will include CleanMyMac , This will include BitDefender


This will included Norton Antivirus , Sophos Av Software


Intego AntiVirus, McAfee, MacKeeper, Avast AntiVirus


Ad Guard, Webroot , ESET , Kaspersky Antivirus. Anti virus


AVG AntiVirus   PowerMyMac 


Trustee  Total AV


The The Built in Security  is all that is required.

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9 replies
Question marked as Top-ranking reply

Sep 29, 2022 2:26 AM in response to solutionist99

Any Third Party Applications that will interfere with the normal operation of the OS,  is an invitation for disaster and comprising the Operating System


Certain Applications maybe available on the Apple Apps Store - this only means the Developer is prepared to pay Apple a portion on each sale. What the Application may do to the computer is up to the User to check this out before purchase


Any of the below should be removed as per Developers Instructions


Below List is only a Partial List. There are more un-named " Bad Actor " Software out there which I add as they appear on these Forums


This will include CleanMyMac , This will include BitDefender


This will included Norton Antivirus , Sophos Av Software


Intego AntiVirus, McAfee, MacKeeper, Avast AntiVirus


Ad Guard, Webroot , ESET , Kaspersky Antivirus. Anti virus


AVG AntiVirus   PowerMyMac 


Trustee  Total AV


The The Built in Security  is all that is required.

Sep 29, 2022 7:00 AM in response to solutionist99

You are welcome and thank you too 🇨🇦


Do come back to the Apple Support Communities ( ASC )  in the future, if / or when additional questions may arise


Below is only an FYI Only and good work there post update 👍


There are no known Windows-like Viruses in the wild that self replicate and affect macOS, because of the underling UNIX  Foundation and Permission Limitation. 


Additionally, and specific to Big Sur macOS 11 and Monterey macOS 12, the Operating System resides in a Sealed and Read Only Volume that can not be opened by the User and protects against from “ Bad Actor “ Software.


The Only thing this Antivirus software is protecting is the Bank Account of the Developers and for zero return to the User aside from the problems this software creates.


AntiVirus Developers purposefully Market their product to create a “ Fear Factor “. In so doing, creating a False Need for their Product.



Sep 28, 2022 9:56 PM in response to solutionist99

Do you have multiple eMail account configured in the Apple Mail app? If so, or even if just one, if you temporarily disable the account, can you open the Mail app successfully now? For multiple accounts, I suggest that you start by disabling all of them. Verify that the Mail app opens properly. Then enable one account, shut down the app, and then, restart it. If successfully, keep trying with the remaining accounts until you find the culprit.

Sep 29, 2022 2:05 AM in response to solutionist99

To add -- >> with Mail closed Completely. Hold the SHIFT key and then click the Mail icon in Applications folder ( not Dock )


This will preform a Safe Launch of mail. Any better ?


Still issues - being as Safe Mode was used perviously and this helped - this could be a system of some Third Party Software playing up and interfering with Mail


Suggest UnInstalling any AntiVirus, Disk Cleaners, Disk Optimizes from this computer and should be removed as per Developers Instructions

Sep 29, 2022 6:40 AM in response to solutionist99

OK. I've now updated to latest IOS and rebooted. No Mail. Re-booted in Safe Mode and got Mail. Turned off each mail account and rebooted. Mail opens. Added accounts one-by-one and all OK. Re-booted and all OK ... so far. I'll leave it overnight, sacrifice a few furry creatures to see if that helps, and try a re-boot tomorrow morning. Fingers crossed. Thanks for the help.

Oct 2, 2022 1:41 PM in response to solutionist99

I've had the same symptoms of mail not loading on my personal M1 while working fine on other Mac devices twice. The first time I tried many things, ultimately restored it with configurator and still had the problem. after 3 months creating a new iCloud ultimately fixed it, which made me very grumpy. Second occurrence was with the update to 12.6 and I ended up using 3rd party software from https://eclecticlight.co/ designed to root out unified log messages about iCloud and perform, well basically delete hidden files stored on the server side of cloud services which within seconds was followed my mail on my M1 loading.


I have not been able to repeatably reproduce or understand this problem. Further iCloud and cloud services are not well understood by me, however being that new computers and configurator restores didn't fix it with me, while deleting an iCloud as well as using someone else's software that claims to delete server side files involved in synchronizing, I'm inclined to think its a server issue and doubt it's a user variable. It would also not shock me if it's just the AppleSilicon computers experiencing this. Changing processor architecture is not a minor difference.


Love to hear details if your mail stops loading again. I dislike not being able to fix something for ages and then not understanding precisely what the issue was once It does resolve.

Mail refuses to load on M1 Mac

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