when an email provider decides to deny a particular mail server access to their server. That can be used to kill all newsletters on that server.
The Indemnify clause in the TOS gives them this right, however.
It's a mechanism similar to how the Fediverse isolated Gab, which is 99.3% insulated from the rest of us.
Because people like Mike Adams and Alex Jones host their own infrastructure, it makes them less prone to registrar pressured takedowns, but much easier to block.
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