How Do I Allow Less Secure Apps In Gmail. Select allow users to manage their access to less secure apps. Other apps, like the included mail and calendar apps on mac and ios, also allow you to choose to sign in with just your username and password, and therefore use them as a “less secure app.”
Go to my account and click on connected apps and sites. On that page, scroll to the allow less secure apps setting and toggle this to on to enable less secure apps. ( note to google apps users:
Now turn on allow less secure apps:on toggle button on the new page.
It's behaving exactly as if the problem is that google allow less secure apps setting is set to off. Click on your profile image in the upper right corner. Go to the less secure app access section of your google account. Select allow users to manage their access to less secure apps.