There are two steps to creating a Smart Host with G Suite. See both sections below to properly set this up.

Step 1: Create a Smart Host

In order for outbound email from G Suite to be routed through VIPRE, we need to add an outbound gateway to G Suite and point it to VIPRE.

1. Log into your G Suite account
2. Select Apps > G Suite > Gmail
3. Scroll down and select Advanced Settings
   
4. In Advanced Settings, scroll down to Outbound gateway and type in your outbound gateway name (e.g. domain-com.outbound1-na.mailanyone.net )
   
5. In the bottom right of the screen, select Save

These changes may take up to 1 hour to propagate to all users.

Step 2: Configure an Inbound Mail Gateway

1. We recommend that G Suite clients also add the VIPRE IPs to the G Suite Inbound Gateway. This prevents Google from performing SPF checks on the sending domain against the VIPRE IPs. To configure an inbound mail gateway:
   1. Update your domain’s MX records to refer to the inbound mail gateway server (see Related Articles for details)
   2. Configure the inbound mail gateway server to deliver mail to the G Suite mail servers. The configuration steps differ depending on the gateway server
   3. Log in to your G Suite account
   4. Select Apps > G Suite > Gmail
   5. Scroll down and select Advanced Settings
      
   6. Scroll down to Inbound gateway
   7. Hover the cursor to the right of Inbound gateway
      1. To create a new inbound gateway setting, select Configure
         or
      2. To edit an existing setting, select Edit
   8. Under Gateway IPs, enter the information for each gateway
      1. Select Add
      2. Enter the following network ranges (select the appropriate tab below)

3. Select Save

Google provides additional detailed instructions in their article Set up an inbound mail gateway.