MJML
Markup language for responsive email.
MJML is a markup language that compiles to table-based HTML that renders consistently in Outlook and Gmail. Vendor-neutral, broad framework integrations including mjml-react.
The question here is which one a backend engineer would rather operate. That means SDK depth in the language already in use, whether a retry can safely be replayed, how much the event log tells you when a customer says the email never arrived, and whether the pricing curve stays sane as volume grows.
Against password resets, receipts, and magic links shipped from application code, MJML covers developer experience, and does not cover SDK breadth, idempotency keys, event stream, and webhook coverage. Whether that gap matters depends on how central those are to the build.
- DX score: 8/10
- SDKs: None
- Idempotency keys: No
- Operating since: Not published
- Event stream: No
- Best published rate per 1,000: Tiers not published in comparable form
- Webhooks: No
- Deliverability: Not applicable.
- Free tier: Free, MIT-licensed
Not applicable.
Polyglot teams needing a vendor-neutral template language.
- › Mature, language-agnostic
- › Excellent rendering across clients
- › XML-style syntax can feel verbose
Features at a glance
| API | No |
| SMTP | No |
| SDKs | None |
| Webhooks | No |
| Templates | rich |
| React Email | No |
| Batch send | No |
| Scheduled send | No |
| Suppressions | No |
| Multi-tenant | No |
| Inbound parsing | No |
| Event stream | No |
| Idempotency keys | No |
| Dedicated IP | No |