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Mail app crashes, followed by error from Gmail saying that Gmail blocked a sign in attempt from me because it says I used a "less secure app"

Mail app crashed while attempting to check email from Gmail. Then I got an error from Gmail saying that Gmail blocked a sign in attempt from someone (me) because it says I used a "less secure app." I was on my Mac mini using the mail app. Can anyone shed some light?

Mac mini (Late 2014), macOS High Sierra (10.13)

Posted on Feb 25, 2018 11:29 PM

Mail app crashes, followed by error from Gmail saying that Gmail blocked a sign in attempt from me because it says I used a "less secure app"

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