Exactly, thinking that is what I was getting pulled me over the edge, I sometimes remember a music video I want to listen to on my phone during my commute and I don’t want to spend 30 minutes either getting on my PC to download it with a tool, or using a third party downloader which can at times be shady. So upgrading that to a single click in the app seemed like a great deal. Crushingly disappointed when I found out how it actually was. Turns out the real answer was NewPipe, which I don’t even have to pay for.
Yeah and honestly, this is largely a reasonable standard for anyone running an email server. If you don’t have SPF, DKIM and DMARC, basically anyone can spoof your emails and you’d be none the wiser. It also makes spam much harder to send without well, sacrificing IP addresses to the many spam lists. I wouldn’t be surprised if some people setting up their own mail server were made aware of these things because of being blocked.