head to head
Mailchimp vs Brevo
Recognizable marketing suite versus broader budget-friendly marketing and transactional email.
What matters for teams choosing a transactional API
Judged purely as an API. What the request contract guarantees on retry, how complete the webhook event coverage is, whether suppressions are readable and writable programmatically, and how much the message log retains when something needs debugging in production.
| Priority | Mailchimp / Mandrill | Brevo |
|---|---|---|
| Idempotency keys | No | No |
| Webhooks | Yes | Yes |
| Event stream | Yes | Yes |
| Operating since | Not published | 2012 |
| Suppressions API | Yes | Yes |
| Best published rate per 1,000 | Tiers not published in comparable form | Tiers not published in comparable form |
| Batch sending | Yes | Yes |
| SDKs | node, python, php, ruby | node, python, go, ruby, php, java, dotnet |
| Deliverability | Mixed; depends heavily on the shared IP pool you land on. | Reliable for marketing and transactional; per-day free-tier limits prevent spam abuse. |
For a transactional workload running high-frequency programmatic sends where a missed delivery is a product failure, Brevo takes every priority that separates them here (SDK breadth), while Mailchimp / Mandrill matches it on the rest. That ordering reflects this audience. Weigh the same table differently and the answer changes.
Side by side
| Feature | Mailchimp / Mandrill | Brevo |
|---|---|---|
| Webhooks | Yes | Yes |
| SDKs | node, python, php, ruby | node, python, go, ruby, php, java, dotnet |
| Deliverability | Mixed; depends heavily on the shared IP pool you land on. | Reliable for marketing and transactional; per-day free-tier limits prevent spam abuse. |
| Tagline | Legacy marketing giant, transactional via Mandrill. | All-in-one with a generous daily free tier. |
| Free tier | 500 contacts, 1,000 sends/month | 300/day permanent |
| Starts at | $13/mo Essentials | $9/mo for 5,000 emails |
| Pricing model | subscriber-based | tiered |
| API | Yes | Yes |
| SMTP | Yes | Yes |
| Templates | rich | rich |
| React Email | No | No |
| Inbound | No | Yes |
| Multi-tenant | No | No |
| Idempotency | No | No |
| Dedicated IP | Yes | Yes |
| DX score | 5/10 | 7/10 |
| Best for | Non-technical marketers who already use Mailchimp. | Small businesses that need email plus marketing plus SMS in one place. |
Mailchimp / Mandrill
pros
- ›Recognizable brand
- ›Mature template editor
- ›Large agency ecosystem
cons
- ›Three disclosed security incidents in the twelve months to January 2023, the last via social engineering of staff
- ›Mandrill only available as a paid add-on
- ›API ergonomics feel dated
- ›Pricing opacity
Brevo
pros
- ›Generous permanent free tier
- ›Marketing plus transactional plus SMS
- ›Inbound parsing
cons
- ›Surface area is large; pure-API teams may not want the rest
- ›UI can feel busy