Just tried it. No change unfortunately. Tried running the Store Update all and nothing there either. Also nothing in the release notes mentioning the existence of a problem with the Mail app in the last few builds.
Sync issue in Mail app
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Anonymous
Windows Insider Dev build 22449.1000. The Mail app is failing to download any messages with the error code 0x80090001. I have tried deleting the email account and entering it again but still the same result. Wi-Fi connection is functioning normally and email via the web browser functions normally.
UPDATE
Now installed new Dev build 22454.1000. The app still does not sync but now no longer shows an error message.
I have tried adding the email account using advanced settings but still no luck.
The same email account works fine on my other computers running both windows 10 and windows 11
*********Original Title : Mail app not working*****
Windows Insider program | Apps on Insider preview
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Anonymous
2021-09-17T07:15:39+00:00 -
Anonymous
2021-09-18T16:11:47+00:00 Have you tried Mail with the new Dev 458 build? It doesn't show listed as a known issue.
Just downloaded and installed the update to Mail on the Store to version
Unfortunately the app still does not sync my email. Sigh...
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Anonymous
2021-09-23T15:49:56+00:00 Dev 463 was out yesterday, have you tried it with the Mail app?
I'm currently on the last beta build.
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Anonymous
2021-09-23T18:42:16+00:00 I still can't get it to sync with my Yahoo account using Dev 463. I deleted and reinstalled the Mail app and added all of my accounts. My Microsoft and Google accounts work correctly. The Yahoo account accepts my secure app password if I add it using the "Other Account" option. When I try to sync the account, it doesn't find anything and does not display any errors. If I try to add it using the "Yahoo" option, It will only accept my main Yahoo account password and then displays an error to check the account info.
This issue has occurred with the last three builds. It worked fine before that. All accounts work with the Outlook 365 app.
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Anonymous
2021-09-23T20:16:45+00:00 Dev 463 was out yesterday, have you tried it with the Mail app?
I'm currently on the last beta build.
No difference unfortunately. Still no mention of the problem in the release notes either.