GTM Hub
What is Postmark?
Fast, reliable transactional and marketing email delivery service by ActiveCampaign. Specializes in application email delivery with industry-leading deliverability rates since 2010.
Key features
Message Streams
Separates transactional emails from promotional messages through parallel infrastructure to protect delivery speed and reliability
Stellar Deliverability
High inbox placement rates without requiring dedicated IPs, backed by careful sender vetting and anti-spam measures
Multi-Language API Support
Official libraries for Node.js, Python, Ruby, PHP, .NET, and more
Flexible Delivery
Both REST API and SMTP delivery methods supported with quick setup
Detailed Analytics
Built-in email tracking, open tracking, and comprehensive delivery insights
Email Template Editor
Built-in editor for creating and managing email templates
Authentication Support
DKIM, SPF, and DMARC authentication included across all plans
Customer Support
95% customer happiness rating with included support (not premium-tier)
Postmark pricing
All paid plans include unlimited daily email limits. Unused emails do not roll over monthly. Overage charges calculated at end of billing cycle. High-volume custom pricing available.
| Plan | Price | What's included |
|---|---|---|
| Free | $0/month | 100 emails/month; best for testing integration and side projects |
| Basic | $15/month | 10,000 emails/month; overage rate $1.80 per 1,000 emails |
| Pro | $16.50/month | 10,000 emails/month (most popular); overage rate $1.30 per 1,000 emails; customizable data retention up to 365 days; inbound email processing |
| Platform | $18/month | 10,000 emails/month for agencies and larger teams; overage rate $1.20 per 1,000 emails; unlimited custom sending domains; unlimited user accounts; customizable data retention; inbound email processing |
Pros & cons
Pros
- + No dedicated IP required for excellent deliverability
- + Message Streams keep transactional and promotional email separate for better reliability
- + Included customer support across all paid tiers
- + Multi-language SDK support simplifies integration
- + Transparent pricing with no hidden fees
- + Free tier available for testing
- + Trusted by major companies including Asana, 1Password, IKEA, Webflow, Moz
Cons
- − Free tier limited to 100 emails/month
- − No tier between Free (100) and Basic (10,000) emails
- − Unused emails do not roll over to next month
- − Overage charges apply at end of billing cycle
Who is Postmark best for?
- • Transactional emails (password resets, account notifications)
- • Promotional campaigns and newsletters
- • Applications requiring reliable email delivery
- • Developers needing easy API/SMTP integration
- • Agencies and teams with multiple domains (Platform tier)
