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Hogsend vs. Mailchimp

An honest comparison for PostHog + Resend teams. What Mailchimp does well, where it falls short for SaaS lifecycle, and how Hogsend's code-first, self-hosted model differs.

Mailchimp is the name most people think of first when you say "email" -- the default starting point for newsletters and, since the Intuit acquisition, part of a much larger business stack. This page is for developers and technical founders already on PostHog and Resend who are weighing Mailchimp against a code-first lifecycle engine. It's an honest look, not a takedown.

$13--350+/mo | contact-based pricing; free tier limited to 250 contacts / 500 sends, no automation

Pricing last verified 5 June 2026 -- vendors change plans often, so check Mailchimp's pricing page for the current numbers.

What Mailchimp does well

Mailchimp is genuinely good at the thing it was built for: marketing campaigns and newsletters for small and mid-sized businesses. The campaign editor is mature and forgiving, the template library is broad, and a non-technical marketer can put together a polished, on-brand email in an afternoon without touching code. That accessibility is real, and it shouldn't be dismissed.

The feature set is also wide. Beyond campaigns you get basic "Customer Journeys" automations, landing pages, a light CRM, signup forms, and reporting -- enough to run an entire small-business marketing motion from one place. The integration directory is enormous, so connecting Mailchimp to a store, a CMS, or a CRM is usually a few clicks. And the brand familiarity matters: it's easy to hire for and easy to hand off. For a team whose primary need is "send a good-looking newsletter and a couple of automated follow-ups," Mailchimp is a perfectly reasonable, well-supported choice.

Where it falls short

The limits show up the moment your needs become event-driven product lifecycle rather than campaigns. Mailchimp's automations are shallow and campaign-oriented: they're built around list membership, tags, and scheduled sends, not around the granular product events that drive SaaS lifecycle ("activated", "hit usage limit", "invited a teammate"). You can approximate some of this, but you'll be fighting the model rather than working with it.

Pricing is the other common friction point. It's contact-based, so your bill scales with audience size regardless of how much you actually send, and Mailchimp has historically counted contacts in ways teams find frustrating -- archived and unsubscribed contacts have a way of staying on the meter. At scale, both pricing and deliverability are recurring complaints.

Finally, it isn't developer-first. There's no code-first authoring, no version control for your flows, no CI/CD story for automation logic. The API exists, but it's an integration surface, not a way to define and own your journeys as code.

When to pick Mailchimp

There are real cases where Mailchimp is the right call. Pick it if you're an SMB or early-stage team whose main job is newsletters and broadcast campaigns rather than product-triggered lifecycle. Pick it if your automation needs are genuinely simple -- a welcome series, a re-engagement nudge -- and a familiar visual editor outweighs depth. Pick it if a non-technical marketer owns email and there's no developer to maintain code-defined journeys. And pick it if you want one tool that bundles campaigns, forms, landing pages, and a light CRM, with a vast integration directory behind it. If that's your situation, Mailchimp will serve you well.

Mailchimp vs. Hogsend

These tools point in different directions, and the honest framing is a trade-off, not a winner.

MailchimpHogsend
AuthoringVisual editor + automationsCode-first (defineJourney, TypeScript)
Pricing modelPer contact (Intuit-owned)Self-hosted -- infra cost only
Data ownershipMailchimp's infrastructureYour own Postgres
Best fitSMB newsletters + campaignsEvent-driven SaaS lifecycle
ChannelsEmail + light marketing suiteEmail only (today)
Workflow builderYes (visual)No (developer-authored)

The core difference is who owns the automation. With Hogsend, every journey is a TypeScript file in your repo, and the platform is self-hosted and source-available (ELv2) -- your contacts and events live in your own Postgres, with no per-contact or per-email pricing. You pay for infrastructure, full stop. Hogsend is consumed as a versioned engine (@hogsend/engine): you scaffold with pnpm dlx create-hogsend@latest, own only your content, and upgrade with pnpm up "@hogsend/*" -- it is not a fork you maintain a diff against. On depth, you get durable execution via Hatchet (a ctx.sleep survives deploys and resumes exactly where it left off), the new ctx.waitForEvent durable wait (pause a journey until a user does something, or a timeout wins), native PostHog integration, first-party email open and link-click tracking, and real-time, code-defined Buckets that update as events arrive.

But be honest about the gaps. Hogsend is email-only today -- no native SMS, push, or in-app messaging, where Mailchimp's suite is broader. There's no visual workflow builder, so you need a developer to author and change journeys. And it's a younger platform with a smaller community; self-hosting means you own the infrastructure, updates, and monitoring. If your team has no developer to maintain code, Mailchimp's editor is the more pragmatic choice.

The clean dividing line: Mailchimp is built for marketers running campaigns; Hogsend is built for engineers running event-driven lifecycle on data they own. Mailchimp is not in our feature matrix -- that table focuses on the event-driven SaaS-lifecycle platforms most directly comparable to Hogsend -- but it is a quick way to see where Hogsend's strengths lie.

Migrating from Mailchimp

Migration is a "rewrite the good parts" exercise rather than a config import. Export your contacts from Mailchimp as CSV and bring them over through Hogsend's bulk import endpoint (POST /v1/admin/contacts/import), mapping fields to externalId, email, and properties. Then translate the automations worth keeping into TypeScript with defineJourney() -- usually the welcome series and a re-engagement flow -- and leave the campaign cruft behind. The Journeys guide covers authoring, and Migrating to Hogsend walks through the whole process step by step.

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