Roughly 50% of my daily Spam comes from @gmail & @hotmail/@outlook accounts.
What exactly are they doing about that ?
What exactly are they doing about that ?
Nothing at all, because they are too big to care.
Aggressive decentralization is the only way to save the Internet. Host your own email, get everyone you know to host their own email.
At my first corporate job, and my second one as well, all email was sent and received directly from/to each persons individual workstation. There was no concept of centralized email server.
(Let alone outsourcing it to some other company, that would have been completely unthinkable.)
The result is that outgoing hotmail/outlook smtp servers are added to blacklists until they start content filtering their own users.
plenty of bigfreemail spam is actually sent from their network, they're an interesting target for spammers, and at least some of them put a lot of effort in preventing abuse.