Hey @Moneal, thank you for clarifying.
The instructions linked above are specific to particular settings in Outlook, but for Gmail the action to take is to filter your IP Address.The HubSpot Sales extension has settings that allows you to input any IP address that you do not wish to get notifications for. Full details on how to do this can be found here: How can I block HubSpot Sales notifications from certain IP addresses?
Please note: if your activity is still not being filtered, it is likely that your mobile device, computer, or company uses a dynamic IP address, which means that it consistently changes. You can continue to update the IP address in the Blocked IP Address field.
If you are receiving notifications about your activity when reading email on your mobile device, check out this article to learn how to disable notifications for the HubSpot mobile app on your iPhone.