Send Failure for email node

I'm trying to send LoRa data collected to myself via the node-red-email node but I keep getting a send failure message, I tried turning on "allow less secure apps" in my google security settings as a solution but was met with another error message, shown below. I am rather new to Node-red and don't really understand what is the issue. I am acessing the Node-red through the Mulitech LoRa gateway. The node was functioning properly, but then recently started displaying a send failure messages. Is google no longer compatible? Should I use yahoo instead of google?