[tatersolid]

SendGrid and their competitors are already the very definition of “sender pays” for email. “Sender pays” is how they make money. This isn’t a problem of monetary incentives.

The problem is that companies get their SendGrid credentials compromised via password re-use or phishing.

[tonymet]

I mean the carrier pays the recipient , so Twilio and sendgrid bear some cost

[Dylan16807]

They understood just fine. But because that cost passes through to the sendgrid customer, it wouldn't motivate sendgrid to stop enabling spam.