Haven't heard of resend before. I've been pretty unhappy with Sendgrid, especially their usability when running lots of subaccounts. Since you're here, how wou

Haven't heard of resend before. I've been pretty unhappy with Sendgrid, especially their usability when running lots of subaccounts. Since you're here, how would you say you compare vs them or say sparkpost? I looked for comparisons on your site but I wasn't able to find anything.