Email quickstart resulting in error 534-5.7.14 about functions-samples HOT 6 CLOSED

From the support article in the error code, I enabled access for less secure apps here: https://www.google.com/settings/security/lesssecureapps and also allowed access to DisplayUnlockCaptcha here: https://accounts.google.com/DisplayUnlockCaptcha

Welcome and Bye emails are both working now!

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Perhaps the docs could be updated to reflect these two (probably) required steps.

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Thanks @markgoho. You are probably right, I'll add these steps. Were you using a gmail account? Or a GSuite account?

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@nicolasgarnier gmail account to send the emails.

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For me the issue was solved by just waiting 24 hours (on a G Suite account) after enabling "insecure access". I tried after 1 hour and it was still blocked. On a regular gmail account I also had to manually unblock the "device" at https://myaccount.google.com/u/0/device-activity. That setting propagation time can really throw one off.

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I have already enabled both
// 1. https://www.google.com/settings/security/lesssecureapps
// 2. https://accounts.google.com/DisplayUnlockCaptcha
and everything works just fine but after a few hours I start getting an error: "Invalid login: 534-5.7.14 <https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=AKgnsbvz" then I have to enable
https://accounts.google.com/DisplayUnlockCaptcha again. Is there any way to prevent doing this manually every few hours.

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