postmark▌
activecampaign/postmark-skills · updated Apr 8, 2026
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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.
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
How to use postmark on Cursor
AI-first code editor with Composer
Prerequisites
Before installing skills in Cursor, ensure your development environment meets these requirements:
- ›Cursor installed and configured on your development machine
- ›Node.js version 16.0+ with npm package manager (verify with
node --version) - ›Active project directory or workspace where you want to add postmark
Execute installation command
Execute the skills CLI command in your project's root directory to begin installation:
The skills CLI fetches postmark from GitHub repository activecampaign/postmark-skills and configures it for Cursor.
Select Cursor when prompted
The CLI will show a list of available agents. Use arrow keys to navigate and space to select Cursor:
Verify installation
Confirm successful installation by checking the skill directory location:
Reload or restart Cursor to activate postmark. Access the skill through slash commands (e.g., /postmark) or your agent's skill management interface.
Security & Verification Notice
We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.
Skills execute code in your development environment. Always verify the publisher's identity, review recent commits, and test in isolated environments before production deployment.
List & Monetize Your Skill
Submit your Claude Code skill and start earning
Use Cases▌
User Story & Requirements Generation
Create detailed user stories, acceptance criteria, and feature specs
Example
Generate user stories for 'password reset feature' with acceptance criteria, edge cases, and test scenarios
Reduce spec writing time by 50%, ensure comprehensive coverage
Competitive Analysis
Research competitors, compare features, identify gaps
Example
Analyze 5 competitor products, create feature comparison matrix, suggest differentiation opportunities
Complete competitive research in 2 hours instead of 2 days
Roadmap Prioritization
Evaluate features using frameworks (RICE, ICE, Kano) and create prioritized backlogs
Example
Score 20 feature ideas using RICE framework, generate prioritized roadmap with rationale
Make data-driven prioritization decisions faster
Stakeholder Communication
Draft PRDs, status updates, and stakeholder presentations
Example
Create executive summary of Q3 roadmap, monthly progress report, feature launch announcement
Save 3-5 hours/week on communication overhead
Implementation Guide▌
Prerequisites
- ›Claude Desktop or compatible AI client
- ›Access to product documentation and roadmap tools (Jira, Notion, etc.)
- ›Understanding of product management frameworks (RICE, Jobs-to-be-Done, etc.)
- ›Stakeholder contact information and communication channels
Time Estimate
30-60 minutes to see productivity improvements
Installation Steps
- 1.Install product management skill
- 2.Start with user story generation for known feature
- 3.Progress to competitive analysis: research 2-3 competitors
- 4.Use for roadmap prioritization: apply RICE/ICE scoring
- 5.Draft stakeholder communications and refine based on feedback
- 6.Build template library for recurring PM tasks
- 7.Share effective prompts with product team
Common Pitfalls
- ⚠Not validating competitive research—verify facts before sharing
- ⚠Accepting user stories without involving engineering team
- ⚠Over-relying on frameworks without qualitative judgment
- ⚠Not customizing outputs to company culture and communication style
- ⚠Skipping stakeholder validation of generated requirements
Best Practices▌
✓ Do
- +Validate research and competitive analysis with real data
- +Collaborate with engineering when generating technical requirements
- +Customize frameworks and templates to your company context
- +Use skill for first drafts, refine with stakeholder input
- +Document successful prompt patterns for PM tasks
- +Combine AI efficiency with human judgment and intuition
✗ Don't
- −Don't publish competitive analysis without fact-checking
- −Don't finalize user stories without engineering review
- −Don't make prioritization decisions solely on AI scoring
- −Don't skip customer validation of generated requirements
- −Don't ignore company-specific context and culture
💡 Pro Tips
- ★Provide context: company goals, constraints, customer feedback
- ★Ask for alternatives: 'Show 3 ways to prioritize this roadmap'
- ★Request stakeholder-specific formatting: 'Executive summary vs. engineering spec'
- ★Use skill for 70% generation + 30% customization to company needs
When to Use This▌
✓ Use When
Use for user story writing, competitive research, roadmap prioritization, stakeholder communication, and PRD drafting. Best for reducing repetitive documentation and research work.
✗ Avoid When
Avoid for strategic product vision (requires deep customer empathy), pricing decisions (needs market and financial expertise), or when face-to-face customer discovery is more valuable than speed.
Learning Path▌
- 1Basic: user stories, feature specs, status updates
- 2Intermediate: competitive analysis, prioritization frameworks, PRDs
- 3Advanced: product strategy, go-to-market planning, OKR setting
- 4Expert: product vision, market positioning, business model innovation
Discussion
Product Hunt–style comments (not star reviews)- No comments yet — start the thread.
Ratings
4.5★★★★★30 reviews- ★★★★★Maya Sharma· Dec 4, 2024
Solid pick for teams standardizing on skills: postmark is focused, and the summary matches what you get after install.
- ★★★★★Hiroshi Bansal· Nov 23, 2024
We added postmark from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
- ★★★★★Rahul Santra· Nov 19, 2024
postmark is among the better-maintained entries we tried; worth keeping pinned for repeat workflows.
- ★★★★★Yusuf Srinivasan· Oct 14, 2024
postmark fits our agent workflows well — practical, well scoped, and easy to wire into existing repos.
- ★★★★★Pratham Ware· Oct 10, 2024
Keeps context tight: postmark is the kind of skill you can hand to a new teammate without a long onboarding doc.
- ★★★★★Yash Thakker· Sep 25, 2024
postmark has been reliable in day-to-day use. Documentation quality is above average for community skills.
- ★★★★★Layla Lopez· Sep 17, 2024
postmark reduced setup friction for our internal harness; good balance of opinion and flexibility.
- ★★★★★Arya Liu· Sep 5, 2024
Registry listing for postmark matched our evaluation — installs cleanly and behaves as described in the markdown.
- ★★★★★Evelyn Mensah· Aug 24, 2024
postmark reduced setup friction for our internal harness; good balance of opinion and flexibility.
- ★★★★★Dhruvi Jain· Aug 16, 2024
Solid pick for teams standardizing on skills: postmark is focused, and the summary matches what you get after install.
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