Plugin Name: Gmail SMTP
Plugin Author: naa986
Plugin Source: https://wordpress.org/plugins/gmail-smtp/
1. Login the site’s e-mail on Google Developers: https://console.developers.google.com
2. Select My Project > Create project
3. Enter desired project name, then Create
4. Now make sure you are in the Project that we created. Click Credentials.
5. Go to OAuth consent screen and assign Product Name
6. Select Create credentials and choose OAuth client ID
7. Choose Web application, assign Name and Create
8. Now go to your site’s wp-admin. Make sure the Gmail SMTP Plugin is activated already to your site, then go to
Settings > Gmail SMTP
9. Copy Authorized Redirect URI
10. Paste our Authorized Redirect URI to Authorized redirect URIs then Create
11. Copy our client ID and client secret
12. Go back to your Gmail SMTP setting and fulfill all the fields. Save Changes
13. We are almost there! Now Grant Permission
14. Allow permission with the same email used on Google Developers
15. That’s it! We are done! You should see green and Connected message
16. You can now do email testing.