Windows 10: Mail app failing for Exchange accounts, 0x86000c29

I'm trying to link the Mail app to a couple of Exchange email accounts at other companies, and I'm having issues ONLY with one of the four PC's I'm using to do this that I've set up over the past week or so.

I actually had the accounts running on only this PC in the past under 8.1, and Microsoft obviously doesn't bother transitioning you from 8.1 mail to 10 mail because who gives a flying eff about consistent key functionality operation in OS's, right? Microsoft certainly doesn't.

The fact that I had the accounts on this PC is probably a red herring, but I'm getting pretty certain it's not a coincidence that this is the only one out of the four that's been upgraded from 8.1.

I have the same Windows account, the same passcode to all PC's (using PIN), the same screen timeout settings, etc - basically every Activesync auth-impacting information that's common between all four PC's.

I've gone into the webmail -> Phones at the server end, deleted this PC (and the 8.1 Mail instances for the same PC) and tried again to no avail. The device is shown registered as a Windows device, but no actual information regading the device is shown and certainly no 'last synced' indication.

My question: Are there any specific spanners that an 8.1 upgraded PC would throw into the works in terms of stuff like this?

submitted by /u/veritablechicken
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:)

 

Mail app will not open on 10041.


Hello Adam,

This is the suggested solution below if you haven't already tried it.

In this Windows 10 build 10041, the Mail, Calendar, and People apps may be broken due to a licensing issue with the Store Beta. To get these apps working again, you need to follow these steps:

• Open powershell as administrator
• Run the command Get-appxprovisionedpackage –online | where-object {$_.packagename –like “*windowscommunicationsapps*”} | remove-appxprovisionedpackage –online
• Re-install Mail, People and Calendar from the Store (green tile)

 

Windows 10 mail app and Exchange Servers approach


Thank you Ken, I did it already, but did it here too, since Feedback is limited on 1000 characters only, I need more space to explain it in details. Anyone, who would like to test it and have good approach to Exchange Servers by Windows 10 mail app, suggest you go to your OWA through browser, like mail.yourserver.xx/owa and than go to small top-right symbol, then Options, Phone and you will see all devices like Android or IOS phones approved by your account and you will see Windows 10 mail as phone device too. Therefore, I propose that Microsoft programmers change method in Windows 10 mail app, copying it from Outlook which has better and smother connection to Exchange Servers and it will not be registered as phone anymore.

 

Cannot open mail app settings


OK, my next suggestion was going to be uninstalling Mail and Calendar and reinstalling from the Windows Store. You can have a go at this by following these steps.

1. Open the Start menu, type Windows PowerShell.
2. Right click on the Windows PowerShell and select Run as administrator.
3. Enter the below command to remove the Mail and calendar app.

get-appxpackage *microsoft.windowscommunicationsapps* | remove-appxpackage

After performing the above steps, install the Mail and calendar app from the Windows Store.

Hope this helps, you will, of course, have to add you accounts back again.