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postmark-send-email

Facilitates sending transactional and broadcast emails via Postmark, supporting templates, attachments, and tracking.

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Security score

The postmark-send-email skill was audited on Mar 8, 2026 and we found 10 security issues across 4 threat categories. Review the findings below before installing.

Categories Tested

Security Issues

medium line 131

Template literal with variable interpolation in command context

SourceSKILL.md
131console.log(`Email ${index + 1} sent: ${result.MessageID}`);
medium line 133

Template literal with variable interpolation in command context

SourceSKILL.md
133console.error(`Email ${index + 1} failed: ${result.Message}`);
medium line 77

Webhook reference - potential data exfiltration

SourceSKILL.md
77| `Metadata` | object | Key-value pairs for custom tracking data (returned in webhook payloads) |
medium line 100

Webhook reference - potential data exfiltration

SourceSKILL.md
100Response includes `MessageID` — use it for tracking via webhooks or the Messages API.
medium line 275

Webhook reference - potential data exfiltration

SourceSKILL.md
275- `MessageID` returned in response is used for bounce/webhook/API correlation
low line 85

Access to .env file

SourceSKILL.md
85const client = new postmark.ServerClient(process.env.POSTMARK_SERVER_TOKEN);
low line 40

External URL reference

SourceSKILL.md
401. **Get API Token** from your [Postmark server settings](https://account.postmarkapp.com/servers)
low line 57

External URL reference

SourceSKILL.md
57**Endpoint:** `POST https://api.postmarkapp.com/email`
low line 106

External URL reference

SourceSKILL.md
106**Endpoint:** `POST https://api.postmarkapp.com/email/batch`
low line 142

External URL reference

SourceSKILL.md
142**Endpoint:** `POST https://api.postmarkapp.com/email/withTemplate`
Scanned on Mar 8, 2026
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