I received one of these phishing emails, today, and also Namecheap's follow-up/apology. The phony email purported to be from DHL, which really stood out. Both

I received one of these phishing emails, today, and also Namecheap's follow-up/apology. The phony email purported to be from DHL, which really stood out. Both emails were handled by Sendgrid, passing spf, dkim, and dmarc. They appear to use the same dkim selector, though I suppose that isn't so important--just that the headers were convincing enough.