If your email is created by Google Admin (Gsuite), then you need to contact your Administrator and ask then to turn this setting to OFF for your account
<a href=https://admin.google.com/>Sign in</a> to your Google Admin console
From the Admin console Home page, go to Security > Less secure apps.
To apply the setting to everyone, leave the top organizational unit selected. Otherwise, select a child organizational unit or a configuration group
Select the setting for less secure apps:
Allow users to manage their access to less secure apps. Users can turn on or turn off access to less secure apps.