About Postmark
Postmark Pros & Cons
- Up to 4x faster delivery than other providers
- Free tier with 100 emails per month never expires
- 45-day full message and activity retention by default
- Responsive customer support praised in testimonials
- Supports Bulk API for marketing email alongside transactional email
Key Features
REST API
All plansSupports sending and receiving email over REST API calls.
SMTP Support
All plansSupports message delivery via standard SMTP protocol.
Transactional Email
Handles password resets, order confirmations, and other triggered messages through dedicated transactional email streams.
Bulk Email API
Pro+Allows sending bulk marketing and broadcast emails through separate message streams.
Inbound Email
Receives inbound email and converts it into a structured JSON object posted to a webhook URL.
Email Templates
All plansProvides responsive HTML email templates for common transactional messages like welcome emails and password resets.
Activity Retention
Retains full message content and activity data for 45 days by default with optional custom retention from 7 to 365 days.
Link Tracking
Tracks email opens and link clicks to monitor campaign and transactional email performance.
Email Authentication
Supports DKIM, SPF, and DMARC authentication protocols to improve inbox deliverability.
Delivery Analytics
Provides detailed bounce data, delivery rates, spam complaints, and open rates through the Stats API.
Postmark Pricing
View full pricing โ- 100 emails per month
- REST API access
- SMTP access
- Up to 10 servers
- 10,000 emails per month
- REST API & SMTP
- Up to 5 servers
- Up to 5 custom sending domains
- Up to 4 users
- 10,000 emails per month
- REST API & SMTP
- Bulk Email API
- Up to 10 servers
- Up to 10 custom sending domains
- Up to 6 users
- 10,000 emails per month
- REST API & SMTP
- Bulk Email API
- Unlimited servers
- Unlimited custom sending domains
- Unlimited users
| Feature | Free Free/mo | Basic $15/mo | Pro $16.50/mo | Platform $18/mo |
|---|---|---|---|---|
| REST API | ||||
| SMTP Support | ||||
| Bulk Email API | ||||
| Email Templates |
Pricing extracted from the product website and may change. Check the source for current details.
Frequently asked questions about Postmark
Is Postmark free?
Postmark offers a free plan with optional paid upgrades. See the pricing section for what's included in each tier.
How much does Postmark cost?
Postmark offers the following plans: Free, Basic, Pro, Platform. See the pricing section for what's included in each tier and any per-seat or usage-based costs.
What platforms does Postmark support?
Postmark is available on: Web.