@tommertron @supernovae @tkk13909
Yep, because e-mail already had momentum that it got 20 years before Google even existed, and everyone already was using it. Google first tried to replace e-mail with Google Wave and it was a complete fiasco.
They still haven't given up on e-mail yet though. And I'm guessing you don't run your own e-mail server, because you wouldn't use that argument.
As more and more people started using gmail it gave them control. They are now telling you what e-mail needs to contain to be able to be delivered.
The most frustrating thing is that I for example have SPF, DKIM, DMARC set up. My IP address was used dor 2 decades, same with the domain. I never sent spam, or end up on any black list, but gmail started labeling my e-mails as spam (even though for many years they didn't have problem with it) stuff like this. It is discouraging any small e-mail service by purposefully breaking SMTP.
