Postmark
Transactional-focused email API from ActiveCampaign with separate message streams; US-hosted, no EU region.
For transactional senders, three plan families, Basic, Pro and Platform, share the same volume steps from 10k to 1.5M, and Basic is the cheapest at every volume, with Pro and Platform adding features. Overage on Basic is $1.80 per 1k, or $1.70 from 300k, which is high next to Resend or SparkPost at $0.90 or less. Dedicated IPs start at $50 a month and need 300k+ emails a month on Pro or higher. Data is hosted in the US with no EU option.
- Headquarters
- 🇺🇸 United States
- Parent jurisdiction
- 🇺🇸 United States (parent: ActiveCampaign)
- EU self-serve plan
- No / not documented
- GDPR DPA
- Yes
- Billing
- subscription
- Free tier
- Developer plan: 100 emails/month, no overages.
- Open source
- No
- Website
- postmarkapp.com
- Source last checked
- 2026-10-06
- Pricing evidence
- Published rates
Pricing
Calculated from the listed vendor rates; exclusions still apply. How to read these estimates.
| Plan | Base fee / month | 1k additional emails |
|---|---|---|
| Developer (free) | $0 | $0 |
| Basic 10k | $15 | $1.8 |
| Basic 50k | $55 | $1.8 |
| Basic 125k | $115 | $1.8 |
| Basic 300k | $245 | $1.7 |
| Basic 700k | $455 | $1.7 |
| Basic 1.5M | $775 | $1.7 |
| Pro 10k | $16.5 | $1.3 |
| Pro 50k | $60.5 | $1.3 |
| Pro 125k | $126.5 | $1.3 |
| Pro 300k | $269.5 | $1.25 |
| Pro 700k | $500.5 | $1.25 |
| Pro 1.5M | $852.5 | $1.2 |
| Platform 10k | $18 | $1.2 |
| Platform 50k | $66 | $1.2 |
| Platform 125k | $138 | $1.2 |
| Platform 300k | $294 | $1.15 |
| Platform 700k | $546 | $1.15 |
| Platform 1.5M | $930 | $1.15 |
Allowances, plan limits & calculation details
Rates are shown at their recorded precision. A zero means no charge in this calculation; the vendor may charge for things we leave out. See the notes for usage assumptions and currency conversions.
Developer (free)
- Base fee / month
- $0
- Included emails / month (thousands)
- 0.1
- 1k additional emails
- $0
- Modeled plan limits
- ≤ 0.1 emails / month (thousands)
Basic 10k
- Base fee / month
- $15
- Included emails / month (thousands)
- 10
- 1k additional emails
- $1.8
Basic 50k
- Base fee / month
- $55
- Included emails / month (thousands)
- 50
- 1k additional emails
- $1.8
Basic 125k
- Base fee / month
- $115
- Included emails / month (thousands)
- 125
- 1k additional emails
- $1.8
Basic 300k
- Base fee / month
- $245
- Included emails / month (thousands)
- 300
- 1k additional emails
- $1.7
Basic 700k
- Base fee / month
- $455
- Included emails / month (thousands)
- 700
- 1k additional emails
- $1.7
Basic 1.5M
- Base fee / month
- $775
- Included emails / month (thousands)
- 1,500
- 1k additional emails
- $1.7
Pro 10k
- Base fee / month
- $16.5
- Included emails / month (thousands)
- 10
- 1k additional emails
- $1.3
Pro 50k
- Base fee / month
- $60.5
- Included emails / month (thousands)
- 50
- 1k additional emails
- $1.3
Pro 125k
- Base fee / month
- $126.5
- Included emails / month (thousands)
- 125
- 1k additional emails
- $1.3
Pro 300k
- Base fee / month
- $269.5
- Included emails / month (thousands)
- 300
- 1k additional emails
- $1.25
Pro 700k
- Base fee / month
- $500.5
- Included emails / month (thousands)
- 700
- 1k additional emails
- $1.25
Pro 1.5M
- Base fee / month
- $852.5
- Included emails / month (thousands)
- 1,500
- 1k additional emails
- $1.2
Platform 10k
- Base fee / month
- $18
- Included emails / month (thousands)
- 10
- 1k additional emails
- $1.2
Platform 50k
- Base fee / month
- $66
- Included emails / month (thousands)
- 50
- 1k additional emails
- $1.2
Platform 125k
- Base fee / month
- $138
- Included emails / month (thousands)
- 125
- 1k additional emails
- $1.2
Platform 300k
- Base fee / month
- $294
- Included emails / month (thousands)
- 300
- 1k additional emails
- $1.15
Platform 700k
- Base fee / month
- $546
- Included emails / month (thousands)
- 700
- 1k additional emails
- $1.15
Platform 1.5M
- Base fee / month
- $930
- Included emails / month (thousands)
- 1,500
- 1k additional emails
- $1.15
Volume tiers from the pricing-page slider (10k, 50k, 125k, 300k, 700k, 1.5M): Basic $15/$55/$115/$245/$455/$775 with $1.80 overage per 1k ($1.70 from 300k); Pro $16.50 to $852.50 ($1.30 to $1.20 overage); Platform $18 to $930 ($1.20 to $1.15). Basic is the cheapest at every volume; Pro and Platform add features. Higher volumes: contact sales. Dedicated IPs from $50/month per IP, require 300k+ emails/month on Pro or higher. Wildbit's Postmark was acquired by ActiveCampaign (Chicago) in 2022; data hosted in the US. DPA available.
Managed alternatives
At 1M emails / month. Adjust usage and requirements.
Postmark: $9,300/yr estimated.
- Amazon SES: $1,200/yr estimated · $8,100/yr bill differencePublished rates
- ZeptoMail: $3,000/yr estimated · $6,300/yr bill differencePublished rates
- Elastic Email: $3,228/yr estimated · $6,072/yr bill differencePublished rates
- Scaleway Transactional Email: $3,359/yr estimated · $5,941/yr bill differencePublished rates
- SparkPost (Bird Email): $6,360/yr estimated · $2,940/yr bill differencePublished rates
No cheaper managed estimate matches your filters. Adjust your usage or compare with your actual contract bill.
The price difference leaves out migration costs, operating costs and any features you’d need to replace.
Self-hosted options
Operating cost is not estimated. These options are not counted as savings against managed services.
Want a European-owned provider? See European alternatives to Postmark among european transactional email providers.
Compare Postmark
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