Hello, I set up gmail successfully just minutes ago , you should fill the form as follows
1, Driver : smtp
2, host: smtp.gmail.com
3,port : 465
4, encryption: ssl
5, username: example@gmail.com
6,password: your gmail password
7, sender: noreply@example.com
At the same time, you need make this port is allowed .
As I use aws ec2 as my server , I must allow some ports like 80, 443, 25
Hope it can help you.