The Postmark alternative
with marketing included
Postmark is built for transactional email, with broadcasts sent through a separate stream but no campaign builder. Plunk sends transactional email on AWS SES and adds campaigns, workflows and segments on the same account, at $0.001 per email.
How Plunk differs from Postmark
Campaign
August product update
- Recipients
- 12,480
- Opened
- 46%
Newsletters from the same account
Build, schedule and track newsletters in the dashboard. Postmark sends broadcasts through its API, without a campaign builder or audiences.
October usage
- 48,210 contacts
- Free
- 10,000 emails sent
- $10.00
No monthly minimum
Postmark’s paid plans start at $15 a month for 10,000 emails. Plunk charges $0.001 per email, with transactional and marketing at the same rate.
Password reset
To ana@acme.com · 2m ago
Receipt #3980
To tom@acme.com · 9m ago
Transactional stays reliable
Plunk runs on AWS SES with custom domains, DKIM and delivery analytics. Use it for transactional email only if that is all you need.
Which one is right for you?
Choose Plunk if
- You want transactional and marketing email on one bill
- You want automated sequences like onboarding or re-engagement
- You want open source, with the option to self-host
Choose Postmark if
- You only send transactional email and want a service focused on it
- You already have a separate tool for newsletters and automation
- You prefer a fixed monthly plan to paying per email
Feature by feature
| Feature | Plunk | Postmark |
|---|---|---|
| Transactional emails | ||
| Marketing campaigns | Broadcast streams (API) | |
| Workflow automation | ||
| Dynamic segmentation | ||
| Open source | ||
| Self-hostable |
Frequently asked questions
Keep your transactional email and add marketing to it.
Start on the free plan with 1,000 emails a month, no credit card needed. When you need more, every email is $0.001, with unlimited contacts and every feature included.