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Introduction
Introduction to Postscale
Postscale is a complete email infrastructure platform that combines transactional email delivery, inbound email processing, and privacy-focused masked emails in a single, unified API.
Why Postscale?
Building email functionality typically requires multiple services:
- Sending: SendGrid, Postmark, or Mailgun for transactional delivery
- Receiving: Custom SMTP servers or inbound parsing services
- Privacy: Separate alias services like SimpleLogin or Firefox Relay
Postscale brings everything together in one platform with a single API, one dashboard, and one billing relationship.
Core Products
Postscale Send
High-deliverability transactional email delivery with:
- Simple REST API for sending emails
- Automatic SPF, DKIM, and DMARC configuration
- Real-time delivery event tracking and sending statistics
- Template management with dynamic variables
- Dedicated IP addresses (on higher plans)
Postscale Receive
Inbound email processing via webhooks:
- Parse incoming emails to JSON
- Extract headers, body, and attachments
- Route emails based on custom rules
- Thread detection and spam filtering
- Low-latency webhook delivery with retries
Postscale Shield
Privacy-focused masked email addresses:
- Generate unique email aliases per user
- Forward emails while hiding real addresses
- Reply from masked addresses
- Per-alias enable/disable controls
- Forwarding destinations and per-alias controls
Key Features
| Feature | Description |
|---|---|
| Service data hosting | EU/EEA-hosted primary production service data |
| API-First | RESTful JSON API with clear HTTP examples |
| GDPR processor posture | EU-operated company, standard DPA, documented transfer safeguards for limited infrastructure metadata |
| Reliable Infrastructure | Redundant systems, active monitoring, and a 99.9% uptime target for production email workloads |
Getting Started
Ready to start? Here's what to do next:
- Create an account and get your API key
- Follow our Getting Started guide to send your first email
- Explore the API Reference for detailed endpoint documentation
Free tier available
Start with 1,000 emails/month and 10 masked addresses for free. No credit card required.