The Postmark alternative with campaigns and automations built in
Postmark is excellent for transactional email, but that's all it does. Need campaigns, automations, or contact management? You'll need a second tool. Sendkit gives you everything in one platform — transactional, marketing, and automations.
Why teams switch from Postmark
Transactional only
Postmark focuses exclusively on transactional email. Need to send a newsletter or a drip campaign? You'll need a second service. Sendkit handles transactional, campaigns, and automations in one platform.
No contact management
Postmark doesn't manage contacts, lists, or segments. You're on your own for subscriber management. Sendkit includes full contact management with custom properties, lists, and segments.
No automations
Postmark has no automation workflows. No welcome sequences, no drip campaigns, no triggered series. Sendkit has a visual automation builder for any email workflow.
No MCP server
Postmark has no MCP server for AI agents. Sendkit has a full MCP server with 40+ tools — your AI agent can manage templates, send campaigns, segment contacts, and track metrics.
Sendkit vs Postmark
| Feature | Sendkit | Postmark |
|---|---|---|
| Transactional email | Included | Core product |
| Marketing campaigns | Included | Not available |
| Automations | Visual builder | Not available |
| Contact management | Full CRM-lite | Not available |
| Free tier | 3,000 emails/mo (permanent) | No free tier |
| Official SDKs | 10 languages | 5 languages |
| MCP Server | 40+ tools | Not available |
| Email Validation | Built-in | Not available |
Pricing comparison
Postmark's pricing is competitive for transactional email alone, but you'll need a separate service (and budget) for marketing. Sendkit's Marketing plan includes everything.
| Volume | Sendkit | Postmark |
|---|---|---|
| 10,000 emails/mo | $15/mo (Transactional) or $30/mo (Marketing) | $15/mo |
| 50,000 emails/mo | $80/mo (Marketing) | $50/mo |
| 100,000 emails/mo | $130/mo (Marketing) | $100/mo |
Sendkit is a good fit if you
- Need transactional and marketing email in one platform
- Want built-in automations and drip campaigns
- Need contact management with lists and segments
- Use AI agents and need MCP integration
- Want a permanent free tier, not a trial
Postmark might be better if you
- Only need transactional email, nothing else
- Value Postmark's industry-leading delivery speed
- Already use a separate marketing tool and are happy with it
- Need dedicated IP addresses on lower volume plans
Start sending in minutes.
3,000 emails/month on the free tier. No credit card, no commitment.