Verify emails that are associated with Gmail by cross-checking with Gmails sign-up page. This only works for emails with an @gmail.com domain. Each line on the text file must contain ONE email, and it cannot contain the @gmail.com ending.
Example of a good text file: danny12 amandaobrien teslafans
Example of a bad text file: Problems: [email protected] <--- Contains the @gmail.com domain teslafans <--- Contains an indent [email protected] <--- It is not a Gmail address
Script uses the Selenium module, it requires an installation of selenium using pip3.