Postmark
Use when working with Postmark email platform - routes to specific sub-skills for sending emails, processing inbound email, managing templates, or configuring webhooks.
Specification
- Skill ID
- activecampaign/postmark-skills/postmark
- Publisher
- activecampaign
- Repository
- postmark-skills
- Installs
- 0
- Files
- 34
- License
- MIT
- Synced
- Sep 23, 2026
How to use it
Open any RiverX project, open the Skills panel in the chat, and search for this identifier. The files are fetched from the source repository at install time.
activecampaign/postmark-skills/postmarkInstalls these files- .gitignore
- CONTRIBUTING.md
- LICENSE
- README.md
- SKILL.md
- postmark-email-best-practices/SKILL.md
- postmark-email-best-practices/references/compliance.md
- postmark-email-best-practices/references/deliverability.md
- postmark-email-best-practices/references/list-management.md
- postmark-email-best-practices/references/sending-reliability.md
- postmark-email-best-practices/references/testing.md
- postmark-email-best-practices/references/transactional-design.md
- postmark-inbound/SKILL.md
- postmark-inbound/references/handler-examples.md
- postmark-inbound/references/inbound-api.md
- postmark-inbound/references/inbound-setup.md
- postmark-inbound/references/payload-structure.md
- postmark-send-email/SKILL.md
- postmark-send-email/references/batch-email-examples.md
- postmark-send-email/references/error-handling.md
- postmark-send-email/references/installation.md
- postmark-send-email/references/single-email-examples.md
- postmark-send-email/references/smtp-migration.md
- postmark-send-email/references/template-examples.md
- postmark-templates/SKILL.md
- postmark-templates/references/handlebars-syntax.md
- postmark-templates/references/layout-templates.md
- postmark-templates/references/template-api.md
- postmark-webhooks/SKILL.md
- postmark-webhooks/references/bounce-management.md
- postmark-webhooks/references/handler-examples.md
- postmark-webhooks/references/payload-examples.md
- postmark-webhooks/references/security.md
- postmark-webhooks/references/webhook-setup.md
What this skill tells the agent
Postmark Skills
Postmark is a transactional email platform built for developers, with 15+ years of deliverability expertise. These skills teach AI agents how to use the Postmark API effectively.
Sub-Skills
| Feature | Skill | Use When |
|---|---|---|
| Sending emails | postmark-send-email | Sending transactional or broadcast emails — single, batch, bulk, or with templates |
| Inbound processing | postmark-inbound | Processing incoming emails via webhooks, building reply-by-email, email-to-ticket, or document extraction |
| Template management | postmark-templates | Creating, editing, or sending with Postmark's server-side Handlebars templates and layouts |
| Webhooks | postmark-webhooks | Setting up webhooks for delivery, bounce, open, click, spam complaint, and subscription change events |
| Best practices | postmark-email-best-practices | Deliverability setup, compliance (CAN-SPAM/GDPR/CASL), email design, list management, testing, and sending reliability |
Quick Routing
- "Send an email" →
postmark-send-email - "Send a batch of emails" →
postmark-send-email - "Send using a template" →
postmark-send-email(template section) orpostmark-templates(to create/manage templates) - "Handle incoming email" →
postmark-inbound - "Process inbound webhooks" →
postmark-inbound - "Create an email template" →
postmark-templates - "Track deliveries/bounces/opens" →
postmark-webhooks - "Set up bounce handling" →
postmark-webhooks - "Set up SPF/DKIM/DMARC" →
postmark-email-best-practices - "Email compliance / GDPR / CAN-SPAM" →
postmark-email-best-practices - "Domain warm-up" →
postmark-email-best-practices - "List hygiene / suppression management" →
postmark-email-best-practices - "Design a transactional email" →
postmark-email-best-practices - "Test email safely" →
postmark-email-best-practices
Common Setup
Authentication
Postmark uses two types of API tokens:
| Token | Header | Scope |
|---|---|---|
| Server Token | X-Postmark-Server-Token | Sending emails, templates, bounces, webhooks, message streams |
| Account Token | X-Postmark-Account-Token | Managing servers, domains, sender signatures |
Get your Server API Token from Postmark Servers.
SDK Installation
Detect the project language and install the appropriate SDK:
| File | Language | Install Command |
|---|---|---|
package.json | Node.js / TypeScript | npm install postmark |
requirements.txt / pyproject.toml | Python | pip install postmarker |
Gemfile | Ruby | gem install postmark |
composer.json | PHP | composer require wildbit/postmark-php |
*.csproj / *.sln | .NET | dotnet add package Postmark |
Message Streams
Postmark separates email by intent into Message Streams:
| Stream | Value | Purpose |
|---|---|---|
| Transactional | outbound | 1:1 triggered emails (welcome, password reset, receipts) — default |
| Broadcast | broadcast | Marketing, newsletters, announcements |
Never mix transactional and broadcast email in the same stream — it damages deliverability.
Resources
Use this skill in a project
Open any RiverX project, search the Skills panel for activecampaign/postmark-skills/postmark, and install it in one click.