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So what has caused this potentially damaging problem? Most fingers currently point at the troubled Windows Update ( surprise, surprise), though by no means all.
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If you are lucky, you may be able to recover some of your lost email from spam afterwards. Stating that the only workarounds are to either a) remove your Gmail account from the Mail app and weaken the security settings in Gmail by allowing access to less secure apps ( guide), or b) remove your account and use Gmail’s manual IMAP settings ( guide). “The latest version of Windows Mail has broken the settings for Gmail,” confirmed a Windows Insider MVP. This workaround isn't perfect because it creates two sent items in Windows Mail but it does stop Gmail emails being lost or deleted which is the most important thing until Microsoft comes up with a fix. On the next page, select 'Never send it to Spam'.> Settings > Filters and blocked addresses > Create a new filter.In addition to the workarounds detailed below, an additional temporary fix has been found : Microsoft has acknowledged my request for more information about these issues, but it has yet to offer an explanation.Ġ6/27 Update: according to several posters, Google has confirmed this is a Microsoft problem rather than Gmail which means users will have to wait for a Windows 10 update rather than a Googles server-side tweak. At this point, it is clear that Microsoft has a significant syncing issuing with Gmail and, while there are temporary workarounds (see above and below), I would avoid using a Microsoft email client to access your Gmail at this time.
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In addition to this, reports are also growing of similar problems now occurring between Outlook and Gmail - both on Windows and Mac ( 1, 2. 06/28 Update: this problem appears to be getting worse with numerous threads now appearing on the Microsoft Communities forum citing Gmail email being lost, deleted or sent automatically to spam by the Windows 10 Mail app ( 1, 2 3, 4 5, 6, 7, 8 9, 10, 11, 12, 13, 14, 15, 16, 17, etc).
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