Reliable email tests.
Finally.
Send emails to Plop, fetch via API, assert in tests. No mail server. No flaky waits.
<inbox>+<tag>@in.plop.email{
"subject": "Confirm your email",
"text": "Your code is 482913",
"from": "hello@acme.co"
}Three steps to reliable email tests
No mail server setup. No flaky waits. Just a simple API.
Send to Plop
Use qa+signup@in.plop.email as your test user's email address.
Fetch via API
GET /v1/messages/latest returns the email as JSON instantly.
Assert in tests
Extract OTP codes, verify links, and check content.
Built for test automation
Everything you need to test email flows in CI.
Mailboxes + tags
Route flows with mailbox+tag addresses like qa+login@in.plop.email.
REST API
List, filter, and fetch emails. Poll for the latest message.
Scoped API keys
Full access, email-only, or mailbox-scoped keys.
Works with your test framework
Fetch emails, extract codes, assert content.
// Fetch the latest matching email
cy.request({
method: 'GET',
url: 'https://api.plop.email/v1/messages/latest?mailbox=qa&tag=login',
headers: { Authorization: 'Bearer <API_KEY>' },
}).then(({ body }) => {
const otp = body.data.textContent?.match(/\b\d{6}\b/)?.[0]
expect(otp).to.match(/\b\d{6}\b/)
cy.get('[data-testid="otp-input"]').type(otp)
})Open source.
Open book.
Plop is fully open source under the AGPL-3.0 license. Inspect the code, self-host it, or contribute back. Your email testing infrastructure, your rules.
Full transparency
Audit every line. No black boxes, no hidden logic.
Community-driven
Contributions welcome. Shape the future of email testing.
Self-host friendly
Run on your own infrastructure. Full control, full ownership.
Pricing that scales with your inboxes.
Start lightweight, then add mailboxes as you grow.
Starter
One inbox with unlimited tags.
Billed yearly ($59.88 / year)
or $6.99 billed monthly
- 1 email address
- Unlimited tags
- 5,000 emails / month
- 14-day retention
- Shared domain
Pro
10 email addresses for growing teams.
Billed yearly ($468 / year)
or $49 billed monthly
- 10 email addresses
- Unlimited tags
- 60,000 emails / month
- 90-day retention
- Shared domain
Enterprise
Coming soonCustom domains and advanced routing.
- Custom subdomains
- Unlimited mailboxes
- Priority support
- Custom retention
- Coming soon