Since the application for Dittofeed is similar to Mailchimp, which would be newsletters mostly and not transactional email, is that compatible with your primary business case at Resend? From what I can tell, Resend is mostly focused on transactional email and not on mass email messages such as newsletters, which is what I see as what Dittofeed is sharing with their Mailchimp alternative. If you're open to newsletters, let me know, and I'll give it a switch from Sendgrid!