Earlier quoted context omitted.
Blog author chiming in here: We have reserved IPs for Email Service and will be protecting the reputation and fighting spam from originating on Email Service. If we did not do so, our IPs would get flagged and then emails end up in spam or not delivered. That defeats the purpose of having a transactional Email Service. We're well aware of this.
Will you also do this for other spammers using Cloudflare infrastructure, or just specifically for this email product? > For years, Spamhaus has observed abusive activity facilitated by Cloudflare’s various services. Cybercriminals have been exploiting these legitimate services to mask activities and enhance their malicious operations, a tactic referred to as living off trusted services (LOTS) [2]. > With 1201 unreso…
Not defending spammers, but this comes across a smidge naive considering Cloudflare's overall footprint in the modern internet.