Weirdness with smtp restrictions

I remember reading something where there was a bug with smtp restrictions and sending to gmail where you get the below bounce back, until you toggled smtp restrictions off and back on. I am still seeing that issue and for one of our clients it seems to be persistent sending to a g-suite domain. Any thoughts? Here is what I found that seemed to work everytime, but it seem like after an update I have to toggle the setting again. []:60244 is not permitted to 550 relay through this server without authentication.