Each guide lists several genuine options and says which situation suits each one. We are a single entry in every list, and frequently not the right answer — a creator selling courses should be on Kit, and a team that needs landing pages and automation journeys should be on Mailchimp.
Resend is excellent at what it does — the best developer experience in the category, and React Email is genuinely the nicest way to build templates. Teams look elsewhere for reasons that are usually about scope or price rather than quality: they want a broader marketing suite, cheaper infrastructure economics at volume, or a smaller operating surface with harder compliance gates.
SendKernel · Amazon SES · Postmark · Brevo · MailerSend
Mailchimp is still the most complete marketing platform available, and for a marketing department using landing pages, forms, ecommerce integrations, and branching journeys, it earns its price. Teams leave when they are paying for all of that and using a fraction of it — most often when per-contact pricing crosses the point where the invoice is hard to defend.
MailerLite · Brevo · SendKernel · Kit
SendGrid covers both API and marketing use cases at very large scale, and for high, steady volume with a dedicated IP it remains a sensible default. Teams move for reasons that cluster tightly: overage bills, marketing and transactional sharing one volume cap, and support that is thin at the tiers most companies are actually on.
Postmark · Resend · SendKernel · Amazon SES · Brevo
These go one against one, on price and capability, with the case for the other product stated as well as ours.
Work out what you would actually pay
Whether a provider bills for contacts stored or messages sent decides your invoice more than any feature does. The pricing guide shows the arithmetic for both models.
What bulk email costs in 2026