mailtrap-testing-with-sandbox
Capture outbound email in Mailtrap Email Sandbox for development, staging, CI, HTML inspection, spam checks, and fake inbox tests.
Testing with Mailtrap Email Sandbox
Overview
Email Sandbox captures mail in sandboxes (test inboxes)—a test environment where messages are not delivered to real recipients. You can send to sandboxes using our SDKs, HTTP API, or SMTP, depending on your needs.
Before generating SDK code: read the README of the relevant SDK repository (see mailtrap-sending-emails) for current sandbox mode options, inbox id, and constructor flags. Do not rely on memory.
Related skills: mailtrap-sending-emails (live sending hosts and streams).
When to use
- You want no real delivery: dev, staging, CI, or demos where mail must stay in a test inbox.
- You need to inspect what was sent: bodies, headers, attachments, or basic checks (e.g. spam report) via Sandbox / Testing API or the UI.
- You are automating tests against captured mail.
- You will only change SMTP settings so an existing app sends into a sandbox—no need for a framework-by-framework tutorial from this skill.
When not to use
- Live sends to real recipients (
mailtrap-sending-emails). - For full framework setup guides or detailed API references, link users to Mailtrap's Integration tab for SMTP/API details and the API docs for specifics—don't cover every framework or API field here.
Quick reference
A
Subscribers only
The full skill, its 1 bundled files and every download is included with every paid Complete AI plan.
Details
| Source | community |
|---|---|
| License | — |
| Risk label | safe ("critical" means the skill may run commands or touch files — read before use) |
| Files | SKILL.md |
| Added | 2026-06-19 |
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