Google Gmail Setup

Google Gmail setup for SMTP relay

When you use your Gmail to reroute your emails through the system, you will need to white-list the IP address that our server relays

Add an IP address to your whitelist

Sign in to your Google Admin console.

Sign in using your administrator account (does not end in @gmail.com).

From the Admin console Home page, go to Apps - then G Suite - then Gmail and the advanced settings.

Tip: To see Advanced Settings, scroll to the bottom of the Gmail page.

On the left, select the top-level organization, typically your domain.

In the Spam, phishing, and malware section, scroll to the Email whitelist setting. Or, in the search field, enter email whitelist.

Enter the IP address of the sending mail servers you want to whitelist. To add more than one IP address, enter an IP range in Classless Inter-Domain Routing (CIDR) notation or separate each IP address with a comma.

Note: Be sure to enter public IP addresses, as private IP addresses are not accepted.

At the bottom of the Gmail Advanced settings page, click Save.

 It can take up to 24 hours for any changes to take effect. You can track changes in the Admin audit log.