Prompt
sandbox mode for email api
Latest observation
If you mean a sandbox mode for an email API, it usually means a test environment where you can send emails without actually delivering them to real recipients.
Common sandbox features:
- No real delivery: emails are accepted by the API but not sent out.
- Mock recipients: messages may be stored, logged, or shown in a dashboard.
- Safe testing: useful for integration tests, templates, and webhook validation.
- Controlled behavior: some providers require you to verify recipients or use test addresses.
Typical uses:
- Testing SMTP/API integration
- Verifying templates and variables
- Checking bounce/spam/webhook handling
- CI/CD automated tests
Examples by provider:
- SendGrid: sandbox mode available for test sends
- Mailgun: test mode / sandbox domain
- Postmark: test server environment
- AWS SES: sandbox account/region restrictions
- Resend / others: often provide test domains or dev mode
If you want, I can help with:
- How to enable sandbox mode for a specific provider, or
- How to design a sandbox email API for your own app.
Observation history
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