G Suite (Google Apps) Integration

This article explains how to configure G Suite to use Spambrella/Proofpoint as your secure email gateway service.

What Is G Suite?

G Suite (also known as Google Apps) is a cloud-based solution from Google which offers email, messaging, security, archiving and other capabilities delivered from Google’s worldwide network of cloud data centers. For more information please see: https://gsuite.google.com/together

Before You Start

Before continuing with the provisioning and configuration of the Spambrella service, it is recommended that you have the information listed below.

Information required for configuring Spambrella

  • MX record(s) for domain(s) you are configuring

Information required for configuring G Suite

  • Spambrella/Proofpoint IPs, Smart Host and SPF
  • Google admin account

Setup Inbound Mail Flow

Spambrella is deployed between the customer’s G Suite environment and the Internet. Inbound mail is routed to Spambrella by changing the customer’s MX records. After email is processed by Spambrella it is routed to G Suite.

Configure Spambrella

Locate your MX record for the domain in G Suite

  1. Sign-In to the Google Admin console.
  2. From the dashboard go to Apps > G Suite > Gmail > Advanced Settings.
  3. While on the General Settings tab, scroll down to Setup > MX records and make note of all the “Points to” values (you can also enter MX records in the search field).

These values will be necessary when you add your domains to Spambrella.

to the Spambrella user interface. Adding domain(s) to Spambrella

  1. Click the Domains tab.
  2. Click on New Domain.
  3. Enter the domain name you wish to configure.
  4. Ensure “Relay” is selected for domain purpose.
  5. Enter the delivery and failover destinations values.
  6. Choose the method you wish to use for domain verification.
  7. Click Save.
  8. Repeat if you are adding more than 1 domain.

The delivery and failover destinations refers to the “points to” values captured in the previous section.

Configure G Suite

Configure Inbound Mail Gateway

  1. Sign-In to the Google Admin console.
  2. From the dashboard go to Apps > G Suite > Gmail > Advanced Settings.
  3. While on the General Settings tab, scroll down to the Spam > Inbound Gateway (you can also enter Inbound Gateway in the search field).
  4. Hover the cursor to the right of Inbound gateway. To create a new inbound gateway setting, click Configure.
  5. Under Gateway IPs, enter the Spambrella IP addresses.
  6. Check Automatically detect external IP.

When this setting is enabled, Gmail scans the message header to locate the first occurrence of an IP address that is not listed in the Gateway IPs. This is referred to as the “external IP.” Gmail considers the “external IP” as the sending IP and uses this IP for SPF checks and spam evaluation.

  1. Check Reject all mail not coming from gateway IPs.
  2. Check Require TLS for connection from the email gateways listed above.
  3. Click Add Setting

Setup Outbound Mail Flow

Spambrella is deployed between the customer’s G Suite environment and the Internet. Outbound mail is routed to Spambrella by configuring an outbound mail gateway. This will route all outbound mail to Spambrella.

Configure Spambrella

Enable Outbound Relaying

  1. Sign-in to the Spambrella user interface.
  2. Click the Features tab.
  3. Check Enable Outbound Relaying.
  4. Click Save.

Add Service IP addresses to your Inbound Gateway

  1. While logged into the Spambrella user interface, click the Domains tab.
  2. Click Managed Hosted Services.
  3. Choose Google Apps.
  4. Click Save.

Configure G Suite

Configure Outbound Mail Gateway

  1. Sign-In to the Google Admin console.
  2. From the dashboard go to Apps > G Suite > Gmail > Advanced Settings.
  3. While on the General Settings tab, scroll down to the Routing > Outbound Gateway (you can also enter Outbound Gateway in the search field).
  4. In the Outbound Gateway text field, enter the Spambrella Smart host value.
  5. Click Save.

Update Sender Policy Framework (SPF)

When sending outbound email through the Spambrella gateway, recipients receive mail sent from Spambrella rather than G Suite mail servers. If the recipient’s mail service attempts to verify that the message came from your domain, it must confirm that the gateway server is an authorized mail server for your domain.

To enable this, you need to add the Spambrella SPF record to your domain.


Related Case Studies

Having moved away from McAfee, we quickly realised our customers had not settled. We decided to set up an open webinar with all customers and Spambrella. Over 80% of our customers opted to move and a positive decision it was!
The Spambrella team have been excellent. I highly recommend their services and technical expertise.

Harry Miller, Trafic Corp

As an MSP Kingdom provides best of breed packaged services to its clients. Spambrella was brought in to replace both our premium and SMB email security/filter options. Spambrella is quick and simple to set up and administer. The Proofpoint connection is valuable and enables us to quickly deploy policy based encryption which is becoming popular. Overall we cannot fault Spambrella as a service or as a team.

Tina McDonaldson, Kingdom Services

With over 4k end user email users it was top priority that our migration was stable and quick. Spambrella proved to be the perfect choice with hands on technical assistance. We worked late nights migrating our customers from another email security vendor that increased their pricing without prior warning. We are very happy with Spambrella and will continue to recommend this service.

Steven Sumir, Hotel Cocoa

Our experience with Spambrella has been great.
Support is very responsive and provide a high level of value.

Highly recommend!

Monotype is one of the world’s best-known providers of type-related products, technologies and expertise.

Eimis Svabas, Monotype Imaging Inc.

Spambrella rescued us and our customers from uncertain times with Postini/Google and now McAfee. As an MSP we have relied upon Spambrella and their support for just over 2 years. Our experience has been positive and we have overcome obstacles using their support team for anything email related (sometimes out of their scope). We recommend Spambrella to all of our customers. Thanks!

Peter Kozak, Command ICT

Spambrella has been a valued service addition to RCS London. Our clients are very happy with the security features Spambrella provides and the user interaction with the service has been simple and welcomed by all. RCS is a fast growth MSP in London UK and the business requires valuable additions like Spambrella. We recommend Spambrella to other MSP’s looking for a monthly subscription email security service.

Andrew Do, RCS London

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