testing-with-sandbox
Facilitates testing of outbound emails in a sandbox environment, allowing developers to inspect and automate email processes without real delivery.
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The testing-with-sandbox skill was audited on Jun 4, 2026 and we found 6 security issues across 1 threat category. Review the findings below before installing.
Categories Tested
Security Issues
low line 39
External URL reference
SourceSKILL.md
| 39 | | Email Testing API (REST) | `https://sandbox.api.mailtrap.io/api/send/{inbox_id}` | `Authorization: Bearer $MAILTRAP_SANDBOX_API_TOKEN` | |
low line 43
External URL reference
SourceSKILL.md
| 43 | Sandbox uses a **separate** token (`$MAILTRAP_SANDBOX_API_TOKEN`, Testing/Sandbox scope) — never reuse the live `$MAILTRAP_API_TOKEN`. The `account_id` in the example endpoints below is resolved at ru |
low line 78
External URL reference
SourceSKILL.md
| 78 | | List sandboxes | `GET https://mailtrap.io/api/accounts/$MAILTRAP_ACCOUNT_ID/inboxes` | [Sandboxes API](https://docs.mailtrap.io/developers/email-sandbox/sandboxes-inboxes.m |
low line 79
External URL reference
SourceSKILL.md
| 79 | | List messages | `GET https://mailtrap.io/api/accounts/$MAILTRAP_ACCOUNT_ID/inboxes/{inbox_id}/messages` | [Messages](https://docs.mailtrap.io/developers/email-sandbox/messages.md) |
low line 80
External URL reference
SourceSKILL.md
| 80 | | Fetch a message | `GET https://mailtrap.io/api/accounts/$MAILTRAP_ACCOUNT_ID/inboxes/{inbox_id}/messages/{id}` | [Message details](https://docs.mailtrap.io/developers/email-sandbox/messages.md) |
low line 81
External URL reference
SourceSKILL.md
| 81 | | Send test email | `POST https://mailtrap.io/api/accounts/$MAILTRAP_ACCOUNT_ID/inboxes/{inbox_id}/messages` | [Send test emails](https://docs.mailtrap.io/developers/email-sandbox/send-test-emails |
Scanned on Jun 4, 2026
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