Tips

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gsuite admin Allow users to send mail through an external SMTP server when configuring a “from” address hosted outside your email domains.”

You need to enable the setting called "Allow per-user outbound gateways", this can be found in the Admin Console under "Configure advanced settings for Gmail" and then search for "End User Access".

Allow per-user outbound gateways” select it to edit  -- >  “Allow users to send mail through an external SMTP server when configuring a “from” address hosted outside your email domain” to ON

 Whitelist domain in Gsuite

1. In the Admin console Go to Apps > G Suite Gmail > Advanced settings.

2. Scroll to the Spam section, hover over the setting, and click Configure.

3. Enter a unique name for the setting

4. Check the Bypass spam filters for messages received from addresses or domains within these approved senders lists box.

5. Click Use existing or create a new one, enter a new list name, and click Create.

6. Hover over the list name, click Edit, and then click Add.

7. Enter domain name ‘abc.com’  OR   abc.com|mail.abc.com

8. Save

Blocked senders list set up for G Suite domain

Login as Admin to the G Suite admin console. Go to Apps -> G Suite - Gmail -> Advanced Settings.

Scroll down to "Blocked Senders" and click on "edit" to the right.

Here you will create a name for the blocking rule, a blocked address/domain list, and a message to send back to blocked senders.

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