postmark-send-email
Installation
SKILL.md
Send Email with Postmark
Overview
Postmark provides multiple endpoints for sending emails:
| Approach | Endpoint | Use Case | Limits |
|---|---|---|---|
| Single | POST /email |
Individual transactional emails | 1 email, 10 MB payload including attachments |
| Batch | POST /email/batch |
Up to 500 emails in one request | 500 emails, 50 MB payload including attachments |
| Template | POST /email/withTemplate |
Dynamic content with server-side templates | 1 email, 10 MB payload including attachments |
| Batch Template | POST /email/batchWithTemplates |
Bulk templated emails | 500 emails, 50 MB payload including attachments |
| Bulk | POST /email/bulk |
Broadcast stream campaigns | No fixed recipient cap, 50 MB payload including attachments |
Choose batch when: sending 2+ distinct emails at once, performance matters, or attachments are needed. Choose single when: sending one email or real-time per-message error handling is needed.