[nonameiguess]

In some ways, yes. I have a custom domain that is an alias to protonmail and was having trouble when I first started trying to do foster care licensing. Once I finally started getting through and asked agencies what the heck the deal was, it turned out my emails were automatically going to the spam folder or not even being delivered, provided their own providers were Microsoft or Google, which was true of just about all of them. This is true even though I have valid DKIM, registered the domain under a real name, and am the only user and have not been sending spam anywhere. I guess it's a guilty until proven innocent world out there.

Also I was getting what I thought was an annoying bug trying to register for a video streaming subscription for months under an actual protonmail address I use only for that purpose so the spam it gets doesn't flood regular email. It was just silently never getting to the payment page and reloading the page to enter an email without any kind of error or failure message. Each time, I figured screw it, probably broken, I'll try again next month. I finally just tried a gmail address instead and it worked fine.