If you want to configure Gmail account, you need to fill
Encryption type: SSL
Port: 465
Requires Authentication: Yes
Or you can try https://wordpress.org/plugins/wp-mail-bank/. This would help you in authenticating the Gmail account using oAuth.
If you want to configure Gmail account, you need to fill
Encryption type: SSL
Port: 465
Requires Authentication: Yes
Or you can try https://wordpress.org/plugins/wp-mail-bank/. This would help you in authenticating the Gmail account using oAuth.