MAILFLOW WORKSPACE
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Preparing the frontend preview.
Preparing the frontend preview.
Experiment with a simulated email lifecycle. Sandbox activity never reaches real recipients and is excluded from production usage.
Addresses are used only as local form data. No API, SMTP, receiving server or real recipient is contacted. Switching the dashboard environment changes which sandbox records you see, but this never becomes production sending.
Masked demonstration reference only. It cannot authenticate to a real service.
mf_demo_test_••••A91QPrepare an illustrative request. The result stays in sandbox state only.
Separate from Email Logs, Analytics, Usage and Billing.
| Message ID | Recipient | Subject | Status | Created | Simulated lifecycle |
|---|---|---|---|---|---|
sand_demo_01 | preview@example.invalid | Sandbox welcome | Simulated delivered | Oct 30, 2026, 7:00 AM | Accepted by sandbox simulation Delivery state simulated; no recipient contacted |
Documentation sketch only. No endpoint is implemented.
{
"api_key": "mf_demo_test_••••A91Q",
"from": "team@notify.example.com",
"to": [
"preview@example.invalid"
],
"subject": "Sandbox test message",
"html": "<p>Hello from Mailflow sandbox.</p>",
"text": "Hello from Mailflow sandbox.",
"sandbox": true
}{
"message_id": "sand_demo_<generated>",
"status": "simulated_accepted",
"delivery": "none",
"sandbox": true
}Sandbox records are held only in frontend state. Reset clears the selected project and environment’s sandbox records; it does not change Email Logs or production usage.