Mailjet vs Postmark
A source-aware comparison of pricing, documented capabilities and workflow fit.
Short answer
- Price: not directly comparable — Mailjet is pricing not verified, Postmark is usage-based pricing.
- How to start: Mailjet is pricing not verified, Postmark is usage-based pricing.
- Where they differ: on what we checked they match — both offer public api.
These lines are generated from the pricing we track, not from a paid placement. How we score tools.
What Mailjet is
Mailjet handles transactional and marketing email with a collaborative template editor and European data hosting. European hosting and a template editor several people can work in at once make it unusual among developer-first senders. Raw scale features are a step behind the largest providers. The trade is scale, not usability.
What Postmark is
Postmark focuses narrowly on transactional email and is known for delivery speed and inbox placement, keeping marketing mail on separate infrastructure. Keeping transactional and bulk mail on separate infrastructure is the reason deliverability holds up, and it is also the constraint: this is not where you send campaigns. Message streams make that separation explicit rather than optional.
Side by side
| Mailjet | Postmark | |
|---|---|---|
| Category | Marketing | Marketing |
| How to start | Not verifiednot a monthly price | Usage-basednot a monthly price |
| Public API | Yes | Yes |
| Mobile app | not checked | No |
| Open source / self-hostable | not checked | No |
| SSO (SAML) | not checked | Yes |
| Visit | Mailjet ↗ | Postmark ↗ |
What Mailjet is built to do
- Collaborative templates
- Lets several people edit the same email template.
- EU data hosting
- Processes and stores sending data within the EU.
- Transactional and marketing sends
- Runs both message types from one account and API.
What Postmark is built to do
- Separate message streams
- Keeps transactional and broadcast mail on distinct sending reputations.
- Delivery analytics
- Reports bounces, opens and time-to-inbox per message.
- Inbound parsing
- Turns replies into structured webhooks for the application to process.
Choose Mailjet if
- European teams needing both marketing and transactional email.
Choose Postmark if
- Teams where receipts, resets and alerts must arrive.
Evidence and freshness
Where a claim on this page comes from a vendor page, it is linked here.
Mailjet: pros & cons
- Real-time collaboration on templates
- EU data residency option
- Transactional and marketing together
- Deliverability trails specialist providers
- Interface can be slow
- Advanced features on higher tiers
Postmark: pros & cons
- Reputation for reliable inbox delivery
- Separate streams for transactional and broadcast
- Detailed delivery diagnostics
- Strict about what counts as transactional
- Costs more per message than bulk providers
- Not intended for marketing campaigns
Our verdict on Mailjet
The EU hosting and template collaboration are the reasons to pick it.
Our verdict on Postmark
If delivery reliability matters more than price per message, this is the one to beat.