To start using G Suite, you need to verify your domain and configure your domain's MX records to direct mail flow to Google mail servers.
1. Verify domain
Verifying the domain will help you start using your Google services, such as G Suite, Drive Enterprise, or Cloud Identity. If you have G Suite, you can start using Gmail, Google Drive, and all the other services included with your G Suite account. Please refer to this link on how to verify domain.
2. Configure domain's MX records
To start using G Suite, configure your domain's MX records to direct mail flow to Google mail servers.
Go to cwp > domain functions > List DNS Zone > check the domain you want to edit records and click edit records.
delete the existing MX records and add the following records one by one:
@ 3600 MX 1 ASPMX.L.GOOGLE.COM. @ 3600 MX 5 ALT1.ASPMX.L.GOOGLE.COM. @ 3600 MX 5 ALT2.ASPMX.L.GOOGLE.COM. @ 3600 MX 10 ALT3.ASPMX.L.GOOGLE.COM. @ 3600 MX 10 ALT4.ASPMX.L.GOOGLE.COM.
Save your changes
3. change mail routing from local to remote
After the adding records as above, please go to CWP Admin > Email > mail routing.
On the domain you want to use gmail for,click on Change and mail exchanger will change to remote.
You can confirm if it was successful by clicking on status and the output should show the new MX record.
NOTE: Typically, you can send and receive messages at your new G Suite email address in less than 6 hours. However, it may take 48–72 hours before you receive an email at your new address. It’s no fun to wait, but the time for MX records to take effect depends on your domain host. We have no control over this. In the meantime, you can get your email messages at your old email client