It would be good to hold carriers accountable for fishing and spam. Sendgrid , Twilio and other saas messaging carriers need to do a better job with integrity. I don’t expect them to carry the whole burden, but some negative incentive to promote investment . It could be as simple as enforcing sender pays metering . We all know spam is 60+ % of traffic, so sender pays would drive down spam very quickly
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.