Hi. No, I have not changed any of my email settings in several years. I use 10 email accounts, some at gmail, others at other domains, so it's not even possible to change all of them at the same time. But all of them stopped working several weeks ago. And they all work OK again when I turn off Kaspersky. So right now I cannot use Kaspersky and it is turned off. As soon as I turn it on, everything breaks again.