MailCraft vs Postmark
Postmark has built its reputation almost entirely on transactional email deliverability, and deliberately keeps bulk and marketing mail off its sending infrastructure to protect that reputation. It's an excellent choice if transactional is the only thing you need — but that also means no campaigns, no automations, and no native contact/segment management.
Side by side
How they compare
MailCraft includes 5 of these that Postmark lacks or limits.
| Feature | MailCraft | Postmark |
|---|---|---|
| Transactional email API | ||
| SMTP relay | Soon | |
| Marketing campaigns | ||
| Automations & drip sequences | ||
| Contacts, lists & segments | ||
| Built-in email validation | ||
| AI agent / MCP integration | Hosted, 68 tools | Experimental |
| Pricing model | Scales with email volume | Scales with email volume |
Why teams switch from Postmark
Send marketing campaigns and automations without a second, separate sending domain and provider.
One platform for every kind of email, instead of transactional-only by design.
A shared contact and suppression list, rather than none at all.
AI-agent access via MCP for teams building automation on top of email.
Switching takes an afternoon
Verify your domain, swap your send calls for the MailCraft API, and keep Postmark running until the new domain is live.
Start freeComparison based on publicly available information as of September 2026 and may change. Postmark and its logo are trademarks of their respective owner, used here only to identify the product; no endorsement is implied.