However, it’s easy to tell Gmail when an email is not spam, but you’ll need to fiddle with the settings a bit to get things up and running. While Gmail’s robust spam filter is able to tell real email messages from spam messages, a few still fall through the cracks and end up in the Spam folder.
It can be quite frustrating when an email we’ve been waiting for never arrives in our inbox, only for us to discover that it’s been sitting in our spam folder all this time.
