Configure Inbound and Outbound Filtering With G Suite
In order to configure inbound filtering for G Suite follow these steps:
Step 1. Mail Assure Configuration:
- Add the Domain in Mail Assure
- Check your Domain can Communicate with the G Suite Mail Servers
- Set the Outgoing User
- Automatically Populate Mailboxes Tab Based on Destination Server Response
Step 2. G Suite Configuration:
Step 3. Mail Assure (MX Record) Configuration
After you have configured everything else you must now ensure that your MX records are pointing to Mail Assure (if they aren't already).
Step 1: Configuring Mail Assure
- Log in to the Mail Assure control panel as an administrator.
- Click on General > Add Domain.
- Enter the domain name and click Continue.
- Enter the correct Destination route(s) for G Suite - see G Suite Destination Server Address to find out the G Suite destination server addresses you can use.
- Click Add.
To ensure Mail Assure can talk to the G Suite servers you have just added, carry out a Protection status check in Mail Assure:
- In the Admin Level Control Panel, select General > Domains Overview to display all of your domains.
- Click on the dropdown alongside the domain you want to check, and select Protection status to check the routes you have set:
- Click on the newly added domain in the General > Domains Overview page to open the Domain Level Control Panel for that domain.
- Select Outgoing > Manage users and click on the Authenticating Domain tab in the Add a user section.
- The domain name is already entered in the Domain field.
- Enter any password in the Password field (the password is not important in the G Suite setup as it is not used).
- Click and hold the Add button and select Add and configure.
- The Outgoing User Settings page is displayed.
- Ensure the Re-authentication permitted option is ticked.
- Click Save.
You may want to configure the system to make sure all the mailboxes are filtered (you may want to do this as catch-all is disabled).
- In the Domain Level Control Panel, select General > Mailboxes overview.
- In the Configuration tab, in the Incoming panel, ensure Automatically populate 'Mailboxes' tab based on destination server response is ticked.
- Click Save settings.
Step 2: G Suite Configuration
- Sign in to the G Suite control panel and click on G Suite Core Services.
- Click on Gmail.
- Scroll down to the bottom of the page and click on Advanced Settings.
- Scroll down to the Spam section and locate Inbound gateway. Click the CONFIGURE button to the right of the page.
- In the first field, enter a name for this configuration e.g. 'Mail Assure Inbound'.
- In the 1. Gateway IPs section, click Add and enter Mail Assure's delivery IP addresses range ( 188.8.131.52/22) in the IP addesses / ranges box.
- The option to Reject all mail not from gateway IPs (from Mail Assure) is available but it may be best to leave this option unticked just now as existing servers might still have the old MX records. We advise waiting a few days before selecting this option.
- Click ADD SETTING. to take you back to the previous page.
- Scroll down to the Routing section and enter smtpout25.mtaroutes.com in the Outbound gateway field.
- Click to open the Hosts tab and click ADD ROUTE.
- Give the route a name e.g. Mail Assure Outbound.
- Enter smtpout.mtaroutes.com and 587 in the hostname and port fields.
- Click SAVE.
- Click to open the Default routing tab and click ADD SETTING.
- From the Specify envelope recipients to match dropdown, select All recipients.
- Tick the Change route box and select the host added in step 10 above..
- Optionally, tick the Bypass spam filter for this message box. We recommend this option to ensure that Mail Assure is the only spam filter being used.
- Click SAVE.
Although we strive to provide the most up-to-date information, the instructions covered in this G Suite configuration may change. To ensure you have the correct up-to-date information, please refer to the G Suite website.
Step 3 : Configuring Mail Assure (MX Records)
The default records are:
To use US only routing, replace mxn with mxn-us; for EU routing use mxn-eu; for UK routing use mxn-uk; for CA routing use mxn-ca; for AU routing use mxn-au.