When you send messages with ZenSourcer, they are sent directly through your Gmail or G Suite account. This means they look exactly like they were sent from your Gmail inbox and show up in your Sent Mail folder.
ZenSourcer uses the same SSL encryption as Gmail. We use OAuth to make sure all of your sequences send even when your computer is off or you've logged out of ZenSourcer. This also means we never store or have access to your password.