Add Non-Google Email Services (Hosts)
Add another mail service to your Google Workspace settings.
In the Admin console at https://admin.google.com, click the Apps icon.
Select Google Workspace.
Click Gmail. Make sure not to check the box to the left; just click the service.
Select Spam, Phishing and Malware.
Under Organizational Units, select the OU with the users whose settings you want to update. The same updates will apply to all sub-OUs under the OU you choose.
By default, if you don’t select an OU, you will add your setting to the top OU, named after your domain. This way, you will apply changes to all users in your account. This is generally recommended in this case.
Click the Inbound Gateway setting.
Check the Enable box to turn it on.
Next, click the ADD button under IP addresses/ranges, type the IP addresses or ranges, and click SAVE.
Optionally, check the box ‘Automatically detect external IP’ – this helps the setting work better.
You may also wish to Reject all mail from non-gateway IPs and require a secure TLS connection from the gateways. This is optional but recommended if you need to ensure that all messages get encrypted for safe delivery.
Under 2. Message Tagging, you can set up messages from the gateway to be treated as spam if the header matches a regexp. You can learn more about regexp in Google’s Help Center.
Optionally, you can check the box below to turn off Gmail’s built-in spam filters and only rely on the header value above to classify messages as spam.
Click SAVE. It may take up to 24 hours for it to start working.
Add another mail service to your Google Workspace settings.
Get your emails delivered both to Google Workspace and another mail service at the same time.
Have your emails delivered to Google Workspace if the receiving email address exists in Google Workspace, otherwise deliver them to another mail service.
Set this up if you have another mail service and don’t want to receive mail at Google but still want to use Google Workspace email settings like spam filtering and routing.
Save a copy of all sent/received mail by non-Gmail mailboxes in users’ Gmail mailboxes as a backup.
Have emails sent from another mail server go through Google Workspace before delivery.
Have your incoming emails go through another mail server before they get delivered to Gmail.
Have emails sent from Google Workspace go through another mail server before delivery.
© 2022 Workspace123. All rights reserved. | Terms of Service | Privacy Policy
Think we could do something better or just want to tell us how happy you are with the site? We would love to hear from you – your feedback is more valuable than you can imagine.
Fill out this form, and we will get back to you.
Are you running into an issue with the site? Maybe you found a broken link, or something else is wrong?
Fill out this form to let us know, and we will address it as soon as possible.
Please make sure to be very specific and add as many details as possible.
Our goal is to run the number one site in the world for you to get help with and learn how to use Google Workspace. This can’t be so if there is any missing information.
If you believe we need to add something, fill out this form, and we will do our best to add any missing content as soon as possible.
This site uses cookies to ensure you get the best experience. Click here to see our Cookies Policy.
You can stay on top of news and updates in Google Workspace and Workspace123 and get special offers by subscribing to our newsletter.